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157429077 = 3132310511
BaseRepresentation
bin10010110001000…
…10110101010101
3101222020020002120
421120202311111
5310300212302
623342130153
73621060621
oct1130426525
9358206076
10157429077
1180956883
1244880959
1326800500
1416ca0181
15dc4a9bc
hex9622d55

157429077 has 12 divisors (see below), whose sum is σ = 227294784. Its totient is φ = 96879120.

The previous prime is 157429033. The next prime is 157429093. The reversal of 157429077 is 770924751.

It is not a de Polignac number, because 157429077 - 27 = 157428949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157429177) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 154749 + ... + 155762.

It is an arithmetic number, because the mean of its divisors is an integer number (18941232).

Almost surely, 2157429077 is an apocalyptic number.

It is an amenable number.

157429077 is a deficient number, since it is larger than the sum of its proper divisors (69865707).

157429077 is a wasteful number, since it uses less digits than its factorization.

157429077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310540 (or 310527 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 157429077 is about 12547.0744398844. The cubic root of 157429077 is about 539.9600759235.

The spelling of 157429077 in words is "one hundred fifty-seven million, four hundred twenty-nine thousand, seventy-seven".

Divisors: 1 3 13 39 169 507 310511 931533 4036643 12109929 52476359 157429077