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1439130 = 235721189
BaseRepresentation
bin101011111010110011010
32201010010010
411133112122
5332023010
650502350
715142500
oct5372632
92633103
101439130
118a3270
125949b6
133b5074
14296670
151d6620
hex15f59a

1439130 has 96 divisors (see below), whose sum is σ = 4432320. Its totient is φ = 295680.

The previous prime is 1439129. The next prime is 1439147. The reversal of 1439130 is 319341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1439097 and 1439106.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 16126 + ... + 16214.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

21439130 is an apocalyptic number.

1439130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1439130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2216160).

1439130 is an abundant number, since it is smaller than the sum of its proper divisors (2993190).

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

1439130 is a wasteful number, since it uses less digits than its factorization.

1439130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1439130 is about 1199.6374452308. The cubic root of 1439130 is about 112.9015771802.

The spelling of 1439130 in words is "one million, four hundred thirty-nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 49 55 66 70 77 89 98 105 110 147 154 165 178 210 231 245 267 294 330 385 445 462 490 534 539 623 735 770 890 979 1078 1155 1246 1335 1470 1617 1869 1958 2310 2670 2695 2937 3115 3234 3738 4361 4895 5390 5874 6230 6853 8085 8722 9345 9790 13083 13706 14685 16170 18690 20559 21805 26166 29370 34265 41118 43610 47971 65415 68530 95942 102795 130830 143913 205590 239855 287826 479710 719565 1439130