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625116492 = 22327112131983
BaseRepresentation
bin100101010000101…
…000010101001100
31121120021012121200
4211100220111030
52240012211432
6142010225500
721330255030
oct4520502514
91546235550
10625116492
112a0953300
12155425290
139c680b20
145d0441c0
1539d2ea7c
hex2542854c

625116492 has 432 divisors, whose sum is σ = 2277300480. Its totient is φ = 140279040.

The previous prime is 625116467. The next prime is 625116529. The reversal of 625116492 is 294611526.

625116492 is a `hidden beast` number, since 6 + 2 + 5 + 1 + 1 + 649 + 2 = 666.

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

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 143 ways as a sum of consecutive naturals, for example, 7531483 + ... + 7531565.

Almost surely, 2625116492 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 625116492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138650240).

625116492 is an abundant number, since it is smaller than the sum of its proper divisors (1652183988).

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

625116492 is a wasteful number, since it uses less digits than its factorization.

625116492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 138 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 625116492 is about 25002.3297314470. The cubic root of 625116492 is about 855.0410896432.

The spelling of 625116492 in words is "six hundred twenty-five million, one hundred sixteen thousand, four hundred ninety-two".