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492713136 = 243210931391
BaseRepresentation
bin11101010111100…
…011010010110000
31021100010102100200
4131113203102300
52002113310021
6120520315200
715131664306
oct3527432260
91240112320
10492713136
1123313a743
12119012b00
137b103446
144961a276
152d3c9126
hex1d5e34b0

492713136 has 60 divisors (see below), whose sum is σ = 1391607360. Its totient is φ = 162725760.

The previous prime is 492713129. The next prime is 492713141. The reversal of 492713136 is 631317294.

492713136 is a `hidden beast` number, since 492 + 7 + 131 + 36 = 666.

492713136 is a nontrivial binomial coefficient, being equal to C(31392, 2).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 492713136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1 + ... + 31391.

It is an arithmetic number, because the mean of its divisors is an integer number (23193456).

Almost surely, 2492713136 is an apocalyptic number.

492713136 is the 31391-st triangular number and also the 15696-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492713136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695803680).

492713136 is an abundant number, since it is smaller than the sum of its proper divisors (898894224).

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

492713136 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (492713135) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (31514).

492713136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31514 (or 31505 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 492713136 is about 22197.1425188018. The cubic root of 492713136 is about 789.8259168844.

The spelling of 492713136 in words is "four hundred ninety-two million, seven hundred thirteen thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 109 144 218 327 436 654 872 981 1308 1744 1962 2616 3924 5232 7848 15696 31391 62782 94173 125564 188346 251128 282519 376692 502256 565038 753384 1130076 1506768 2260152 3421619 4520304 6843238 10264857 13686476 20529714 27372952 30794571 41059428 54745904 61589142 82118856 123178284 164237712 246356568 492713136