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131074156 = 2240518089
BaseRepresentation
bin1111101000000…
…00100001101100
3100010122020221101
413310000201230
5232023333111
621001212444
73151053253
oct764004154
9303566841
10131074156
1167a95a54
1237a91124
1321203695
141359d79a
15b791bc1
hex7d0086c

131074156 has 12 divisors (see below), whose sum is σ = 229464760. Its totient is φ = 65512800.

The previous prime is 131074133. The next prime is 131074157. The reversal of 131074156 is 651470131.

It is a super-2 number, since 2×1310741562 = 34360868742224672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131074157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12160 + ... + 20248.

Almost surely, 2131074156 is an apocalyptic number.

It is an amenable number.

131074156 is a deficient number, since it is larger than the sum of its proper divisors (98390604).

131074156 is a wasteful number, since it uses less digits than its factorization.

131074156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12144 (or 12142 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 131074156 is about 11448.7622038367. The cubic root of 131074156 is about 507.9711218006.

It can be divided in two parts, 1310 and 74156, that added together give a triangular number (75466 = T388).

The spelling of 131074156 in words is "one hundred thirty-one million, seventy-four thousand, one hundred fifty-six".

Divisors: 1 2 4 4051 8089 8102 16178 16204 32356 32768539 65537078 131074156