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131918702 = 2312127721
BaseRepresentation
bin1111101110011…
…10101101101110
3100012020011102212
413313032231232
5232232344302
621031250422
73161201426
oct767165556
9305204385
10131918702
1168512523
1238219a12
132143ac06
141373d486
15b8ac052
hex7dceb6e

131918702 has 8 divisors (see below), whose sum is σ = 204261312. Its totient is φ = 63831600.

The previous prime is 131918693. The next prime is 131918719. The reversal of 131918702 is 207819131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063799 + ... + 1063922.

It is an arithmetic number, because the mean of its divisors is an integer number (25532664).

Almost surely, 2131918702 is an apocalyptic number.

131918702 is a deficient number, since it is larger than the sum of its proper divisors (72342610).

131918702 is a wasteful number, since it uses less digits than its factorization.

131918702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127754.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 131918702 is about 11485.5867068252. The cubic root of 131918702 is about 509.0597850890.

The spelling of 131918702 in words is "one hundred thirty-one million, nine hundred eighteen thousand, seven hundred two".

Divisors: 1 2 31 62 2127721 4255442 65959351 131918702