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13157210423072 = 252571599855353
BaseRepresentation
bin1011111101110110011011…
…0110100111111100100000
31201120211001121122111010102
42333131212312213330200
53211031431332014242
643552201121321532
72525401640220302
oct277354666477440
951524047574112
1013157210423072
114212a3a304481
121585b571962a8
137459480070b1
14336b53269972
1517c3b1297e32
hexbf766da7f20

13157210423072 has 24 divisors (see below), whose sum is σ = 26004048923916. Its totient is φ = 6553007521792.

The previous prime is 13157210423009. The next prime is 13157210423101. The reversal of 13157210423072 is 27032401275131.

It can be written as a sum of positive squares in 2 ways, for example, as 13124361035536 + 32849387536 = 3622756^2 + 181244^2 .

It is a super-2 number, since 2×131572104230722 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799919453 + ... + 799935900.

Almost surely, 213157210423072 is an apocalyptic number.

It is an amenable number.

13157210423072 is a deficient number, since it is larger than the sum of its proper divisors (12846838500844).

13157210423072 is a wasteful number, since it uses less digits than its factorization.

13157210423072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599855620 (or 1599855612 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 13157210423072 in words is "thirteen trillion, one hundred fifty-seven billion, two hundred ten million, four hundred twenty-three thousand, seventy-two".

Divisors: 1 2 4 8 16 32 257 514 1028 2056 4112 8224 1599855353 3199710706 6399421412 12798842824 25597685648 51195371296 411162825721 822325651442 1644651302884 3289302605768 6578605211536 13157210423072