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131577482 = 2531976301
BaseRepresentation
bin1111101011110…
…11011010001010
3100011120211101002
413311323122022
5232140434412
621020055002
73155250551
oct765733212
9304524332
10131577482
11682aa123
1238094462
132134b7ca
1413690d98
15b840dc2
hex7d7b68a

131577482 has 16 divisors (see below), whose sum is σ = 202142952. Its totient is φ = 64209600.

The previous prime is 131577443. The next prime is 131577517. The reversal of 131577482 is 284775131.

It can be written as a sum of positive squares in 4 ways, for example, as 130210921 + 1366561 = 11411^2 + 1169^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17732 + ... + 24032.

Almost surely, 2131577482 is an apocalyptic number.

131577482 is a deficient number, since it is larger than the sum of its proper divisors (70565470).

131577482 is a wasteful number, since it uses less digits than its factorization.

131577482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6553.

The product of its digits is 47040, while the sum is 38.

The square root of 131577482 is about 11470.7228194216. The cubic root of 131577482 is about 508.6204959466.

The spelling of 131577482 in words is "one hundred thirty-one million, five hundred seventy-seven thousand, four hundred eighty-two".

Divisors: 1 2 53 106 197 394 6301 10441 12602 20882 333953 667906 1241297 2482594 65788741 131577482