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1392570192 = 2431319731609
BaseRepresentation
bin101001100000000…
…1110111101010000
310121001100220011210
41103000032331100
510322444221232
6350103340120
746336436256
oct12300167520
93531326153
101392570192
11655084662
1232a451640
13192679a40
14d2d3a5d6
15823c85cc
hex5300ef50

1392570192 has 160 divisors (see below), whose sum is σ = 4136540800. Its totient is φ = 400121856.

The previous prime is 1392570187. The next prime is 1392570199. The reversal of 1392570192 is 2910752931.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1392570192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392570199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 864684 + ... + 866292.

It is an arithmetic number, because the mean of its divisors is an integer number (25853380).

Almost surely, 21392570192 is an apocalyptic number.

1392570192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1392570192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2068270400).

1392570192 is an abundant number, since it is smaller than the sum of its proper divisors (2743970608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1392570192 is a wasteful number, since it uses less digits than its factorization.

1392570192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 1392570192 is about 37317.1568048800. The cubic root of 1392570192 is about 1116.7064680648.

The spelling of 1392570192 in words is "one billion, three hundred ninety-two million, five hundred seventy thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 16 19 24 26 38 39 48 52 57 73 76 78 104 114 146 152 156 208 219 228 247 292 304 312 438 456 494 584 624 741 876 912 949 988 1168 1387 1482 1609 1752 1898 1976 2774 2847 2964 3218 3504 3796 3952 4161 4827 5548 5694 5928 6436 7592 8322 9654 11096 11388 11856 12872 15184 16644 18031 19308 20917 22192 22776 25744 30571 33288 36062 38616 41834 45552 54093 61142 62751 66576 72124 77232 83668 91713 108186 117457 122284 125502 144248 167336 183426 216372 234914 244568 251004 288496 334672 352371 366852 397423 432744 469828 489136 502008 704742 733704 794846 865488 939656 1004016 1192269 1409484 1467408 1526941 1589692 1879312 2231683 2384538 2818968 3053882 3179384 4463366 4580823 4769076 5637936 6107764 6358768 6695049 8926732 9161646 9538152 12215528 13390098 17853464 18323292 19076304 24431056 26780196 29011879 35706928 36646584 53560392 58023758 73293168 87035637 107120784 116047516 174071274 232095032 348142548 464190064 696285096 1392570192