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130555737 = 32131497489
BaseRepresentation
bin1111100100000…
…01111101011001
3100002122220210200
413302001331121
5231410240422
620542132413
73143463654
oct762017531
9302586720
10130555737
1167771504
1237881109
1321081720
14134a689b
15b6dd2ac
hex7c81f59

130555737 has 24 divisors (see below), whose sum is σ = 204477000. Its totient is φ = 79792128.

The previous prime is 130555727. The next prime is 130555739. The reversal of 130555737 is 737555031.

It is a happy number.

130555737 is a `hidden beast` number, since 1 + 30 + 55 + 573 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47961 + 130507776 = 219^2 + 11424^2 .

It is not a de Polignac number, because 130555737 - 26 = 130555673 is a prime.

It is a super-2 number, since 2×1305557372 = 34089600927226338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130555739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13689 + ... + 21177.

It is an arithmetic number, because the mean of its divisors is an integer number (8519875).

Almost surely, 2130555737 is an apocalyptic number.

It is an amenable number.

130555737 is a deficient number, since it is larger than the sum of its proper divisors (73921263).

130555737 is a wasteful number, since it uses less digits than its factorization.

130555737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657 (or 7654 counting only the distinct ones).

The product of its (nonzero) digits is 55125, while the sum is 36.

The square root of 130555737 is about 11426.0989405834. The cubic root of 130555737 is about 507.3005349100.

The spelling of 130555737 in words is "one hundred thirty million, five hundred fifty-five thousand, seven hundred thirty-seven".

Divisors: 1 3 9 13 39 117 149 447 1341 1937 5811 7489 17433 22467 67401 97357 292071 876213 1115861 3347583 10042749 14506193 43518579 130555737