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130955690 = 2513095569
BaseRepresentation
bin1111100111000…
…11100110101010
3100010102020102202
413303203212222
5232011040230
620554500202
73150051005
oct763434652
9303366382
10130955690
1167a14a48
1237a34662
1321191798
141356c53c
15b76ba45
hex7ce39aa

130955690 has 8 divisors (see below), whose sum is σ = 235720260. Its totient is φ = 52382272.

The previous prime is 130955689. The next prime is 130955717. The reversal of 130955690 is 96559031.

It can be written as a sum of positive squares in 2 ways, for example, as 130210921 + 744769 = 11411^2 + 863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1309556902 = 34298785486752200, which contains 22 as substring.

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, 6547775 + ... + 6547794.

Almost surely, 2130955690 is an apocalyptic number.

130955690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130955690 is a deficient number, since it is larger than the sum of its proper divisors (104764570).

130955690 is a wasteful number, since it uses less digits than its factorization.

130955690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13095576.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 130955690 is about 11443.5872872102. The cubic root of 130955690 is about 507.8180393842.

The spelling of 130955690 in words is "one hundred thirty million, nine hundred fifty-five thousand, six hundred ninety".

Divisors: 1 2 5 10 13095569 26191138 65477845 130955690