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8157912002162 = 2131017334238189
BaseRepresentation
bin111011010110110100101…
…1100100110111001110010
31001212212222220200021021222
41312231221130212321302
52032124400433032122
625203405410145042
71501250443614206
oct166555134467162
931785886607258
108157912002162
11266582971574a
12ab9084282182
134723983b5bb0
14202bb8b4cb06
15e231545bb42
hex76b69726e72

8157912002162 has 32 divisors (see below), whose sum is σ = 13326801974640. Its totient is φ = 3722824339200.

The previous prime is 8157912002101. The next prime is 8157912002171. The reversal of 8157912002162 is 2612002197518.

It can be written as a sum of positive squares in 8 ways, for example, as 5177486117281 + 2980425884881 = 2275409^2 + 1726391^2 .

It is a super-2 number, since 2×81579120021622 (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 15 ways as a sum of consecutive naturals, for example, 194237 + ... + 4043952.

Almost surely, 28157912002162 is an apocalyptic number.

8157912002162 is a deficient number, since it is larger than the sum of its proper divisors (5168889972478).

8157912002162 is a wasteful number, since it uses less digits than its factorization.

8157912002162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239038.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 8157912002162 in words is "eight trillion, one hundred fifty-seven billion, nine hundred twelve million, two thousand, one hundred sixty-two".

Divisors: 1 2 13 26 101 202 733 1313 1466 2626 9529 19058 74033 148066 962429 1924858 4238189 8476378 55096457 110192914 428057089 856114178 3106592537 5564742157 6213185074 11129484314 40385702981 80771405962 313765846237 627531692474 4078956001081 8157912002162