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131961932 = 22211156353
BaseRepresentation
bin1111101110110…
…01010001001100
3100012022100201222
413313121101030
5232240240212
621032222512
73161441444
oct767312114
9305270658
10131961932
1168541a53
123823aa38
13214547ab
1413751124
15b8b9c72
hex7dd944c

131961932 has 12 divisors (see below), whose sum is σ = 232029336. Its totient is φ = 65667840.

The previous prime is 131961917. The next prime is 131961959. The reversal of 131961932 is 239169131.

It is a junction number, because it is equal to n+sod(n) for n = 131961892 and 131961901.

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, 77333 + ... + 79020.

It is an arithmetic number, because the mean of its divisors is an integer number (19335778).

Almost surely, 2131961932 is an apocalyptic number.

It is an amenable number.

131961932 is a deficient number, since it is larger than the sum of its proper divisors (100067404).

131961932 is a wasteful number, since it uses less digits than its factorization.

131961932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156568 (or 156566 counting only the distinct ones).

The product of its digits is 8748, while the sum is 35.

The square root of 131961932 is about 11487.4684765618. The cubic root of 131961932 is about 509.1153856236.

The spelling of 131961932 in words is "one hundred thirty-one million, nine hundred sixty-one thousand, nine hundred thirty-two".

Divisors: 1 2 4 211 422 844 156353 312706 625412 32990483 65980966 131961932