Search a number
-
+
157479858 = 2328748881
BaseRepresentation
bin10010110001011…
…11001110110010
3101222022210202100
421120233032302
5310303323413
623343201230
73621361644
oct1130571662
9358283670
10157479858
1180990a48
12448a6216
132681a663
1416cb4894
15dc5aa73
hex962f3b2

157479858 has 12 divisors (see below), whose sum is σ = 341206398. Its totient is φ = 52493280.

The previous prime is 157479853. The next prime is 157479869. The reversal of 157479858 is 858974751.

It can be written as a sum of positive squares in only one way, i.e., 124612569 + 32867289 = 11163^2 + 5733^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157479853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4374423 + ... + 4374458.

Almost surely, 2157479858 is an apocalyptic number.

157479858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

157479858 is an abundant number, since it is smaller than the sum of its proper divisors (183726540).

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

157479858 is a wasteful number, since it uses less digits than its factorization.

157479858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748889 (or 8748886 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 157479858 is about 12549.0978958649. The cubic root of 157479858 is about 540.0181269635.

The spelling of 157479858 in words is "one hundred fifty-seven million, four hundred seventy-nine thousand, eight hundred fifty-eight".

Divisors: 1 2 3 6 9 18 8748881 17497762 26246643 52493286 78739929 157479858