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1368625192 = 231121977177
BaseRepresentation
bin101000110010011…
…1001000000101000
310112101022100210221
41101210321000220
510300332001232
6343450215424
745626056624
oct12144710050
93471270727
101368625192
1164260a400
12322424574
1318a714abc
14cdaa6184
1580248897
hex51939028

1368625192 has 48 divisors (see below), whose sum is σ = 2835381780. Its totient is φ = 618858240.

The previous prime is 1368625129. The next prime is 1368625211. The reversal of 1368625192 is 2915268631.

It can be written as a sum of positive squares in 2 ways, for example, as 952709956 + 415915236 = 30866^2 + 20394^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187108 + ... + 194284.

Almost surely, 21368625192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368625192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1417690890).

1368625192 is an abundant number, since it is smaller than the sum of its proper divisors (1466756588).

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

1368625192 is a wasteful number, since it uses less digits than its factorization.

1368625192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7402 (or 7387 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 1368625192 is about 36994.9346803045. The cubic root of 1368625192 is about 1110.2689043610.

The spelling of 1368625192 in words is "one billion, three hundred sixty-eight million, six hundred twenty-five thousand, one hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 121 197 242 394 484 788 968 1576 2167 4334 7177 8668 14354 17336 23837 28708 47674 57416 78947 95348 157894 190696 315788 631576 868417 1413869 1736834 2827738 3473668 5655476 6947336 11310952 15552559 31105118 62210236 124420472 171078149 342156298 684312596 1368625192