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157090844 = 2241957871
BaseRepresentation
bin10010101110100…
…00010000011100
3101221121001010102
421113100100130
5310203401334
623331000232
73615151541
oct1127202034
9357531112
10157090844
1180745749
1244739078
1326712581
1416c12bc8
15dbd067e
hex95d041c

157090844 has 12 divisors (see below), whose sum is σ = 281614368. Its totient is φ = 76629600.

The previous prime is 157090831. The next prime is 157090847. The reversal of 157090844 is 448090751.

It is a junction number, because it is equal to n+sod(n) for n = 157090798 and 157090807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157090847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 478772 + ... + 479099.

It is an arithmetic number, because the mean of its divisors is an integer number (23467864).

Almost surely, 2157090844 is an apocalyptic number.

It is an amenable number.

157090844 is a deficient number, since it is larger than the sum of its proper divisors (124523524).

157090844 is a wasteful number, since it uses less digits than its factorization.

157090844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957916 (or 957914 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 157090844 is about 12533.5886321516. The cubic root of 157090844 is about 539.5731011027.

The spelling of 157090844 in words is "one hundred fifty-seven million, ninety thousand, eight hundred forty-four".

Divisors: 1 2 4 41 82 164 957871 1915742 3831484 39272711 78545422 157090844