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3157133138 = 2171917832741
BaseRepresentation
bin1011110000101110…
…0000011101010010
322011000200222110222
42330023200131102
522431211230023
61241140153042
7141144121535
oct27413403522
98130628428
103157133138
111380134945
12741398782
133b4110123
1421d42aa1c
15137281cc8
hexbc2e0752

3157133138 has 32 divisors (see below), whose sum is σ = 5283066240. Its totient is φ = 1406211840.

The previous prime is 3157133123. The next prime is 3157133159. The reversal of 3157133138 is 8313317513.

It is a junction number, because it is equal to n+sod(n) for n = 3157133098 and 3157133107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1150448 + ... + 1153188.

It is an arithmetic number, because the mean of its divisors is an integer number (165095820).

Almost surely, 23157133138 is an apocalyptic number.

3157133138 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3157133138 is a deficient number, since it is larger than the sum of its proper divisors (2125933102).

3157133138 is a wasteful number, since it uses less digits than its factorization.

3157133138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562.

The product of its digits is 22680, while the sum is 35.

The square root of 3157133138 is about 56188.3719109212. The cubic root of 3157133138 is about 1467.0028770439.

The spelling of 3157133138 in words is "three billion, one hundred fifty-seven million, one hundred thirty-three thousand, one hundred thirty-eight".

Divisors: 1 2 17 19 34 38 323 646 1783 2741 3566 5482 30311 33877 46597 52079 60622 67754 93194 104158 575909 885343 1151818 1770686 4887203 9774406 83082451 92856857 166164902 185713714 1578566569 3157133138