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131705032 = 2316463129
BaseRepresentation
bin1111101100110…
…10100011001000
3100011211022100011
413312122203020
5232204030112
621022521304
73156321454
oct766324310
9304738304
10131705032
1168386a38
1238136234
1321394894
14136c5664
15b868aa7
hex7d9a8c8

131705032 has 8 divisors (see below), whose sum is σ = 246946950. Its totient is φ = 65852512.

The previous prime is 131705029. The next prime is 131705099. The reversal of 131705032 is 230507131.

It can be written as a sum of positive squares in only one way, i.e., 130279396 + 1425636 = 11414^2 + 1194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 131704994 and 131705012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8231557 + ... + 8231572.

Almost surely, 2131705032 is an apocalyptic number.

It is an amenable number.

131705032 is a deficient number, since it is larger than the sum of its proper divisors (115241918).

131705032 is a wasteful number, since it uses less digits than its factorization.

131705032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16463135 (or 16463131 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 131705032 is about 11476.2812792298. The cubic root of 131705032 is about 508.7847935443.

The spelling of 131705032 in words is "one hundred thirty-one million, seven hundred five thousand, thirty-two".

Divisors: 1 2 4 8 16463129 32926258 65852516 131705032