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157905484 = 22112326251
BaseRepresentation
bin10010110100101…
…11001001001100
3102000010102121021
421122113021030
5310410433414
623400243524
73625113562
oct1132271114
9360112537
10157905484
1181151800
1244a705a4
13269392c9
1416d85a32
15dce1c24
hex969724c

157905484 has 18 divisors (see below), whose sum is σ = 303740612. Its totient is φ = 71775000.

The previous prime is 157905481. The next prime is 157905487. The reversal of 157905484 is 484509751.

It is an interprime number because it is at equal distance from previous prime (157905481) and next prime (157905487).

It is a self number, because there is not a number n which added to its sum of digits gives 157905484.

It is not an unprimeable number, because it can be changed into a prime (157905481) 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 5 ways as a sum of consecutive naturals, for example, 162642 + ... + 163609.

Almost surely, 2157905484 is an apocalyptic number.

It is an amenable number.

157905484 is a deficient number, since it is larger than the sum of its proper divisors (145835128).

157905484 is a wasteful number, since it uses less digits than its factorization.

157905484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326277 (or 326264 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 157905484 is about 12566.0448829375. The cubic root of 157905484 is about 540.5041975802.

The spelling of 157905484 in words is "one hundred fifty-seven million, nine hundred five thousand, four hundred eighty-four".

Divisors: 1 2 4 11 22 44 121 242 484 326251 652502 1305004 3588761 7177522 14355044 39476371 78952742 157905484