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130887074 = 265443537
BaseRepresentation
bin1111100110100…
…10110110100010
3100010021202022102
413303102312202
5232001341244
620553210402
73146343653
oct763226642
9303252272
10130887074
116797843a
1237a00a02
1321169496
141355152a
15b75654e
hex7cd2da2

130887074 has 4 divisors (see below), whose sum is σ = 196330614. Its totient is φ = 65443536.

The previous prime is 130887023. The next prime is 130887077. The reversal of 130887074 is 470788031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100140049 + 30747025 = 10007^2 + 5545^2 .

It is a super-2 number, since 2×1308870742 = 34262852280562952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130887077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32721767 + ... + 32721770.

Almost surely, 2130887074 is an apocalyptic number.

130887074 is a deficient number, since it is larger than the sum of its proper divisors (65443540).

130887074 is an equidigital number, since it uses as much as digits as its factorization.

130887074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65443539.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 130887074 is about 11440.5888834448. The cubic root of 130887074 is about 507.7293311855.

The spelling of 130887074 in words is "one hundred thirty million, eight hundred eighty-seven thousand, seventy-four".

Divisors: 1 2 65443537 130887074