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130861092 = 22310905091
BaseRepresentation
bin1111100110011…
…00100000100100
3100010020102200010
413303030200210
5232000023332
620552450220
73146205135
oct763144044
9303212603
10130861092
116795a96a
12379a9970
132115a6cb
1413545c8c
15b74d9cc
hex7ccc824

130861092 has 12 divisors (see below), whose sum is σ = 305342576. Its totient is φ = 43620360.

The previous prime is 130861091. The next prime is 130861103. The reversal of 130861092 is 290168031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (130861091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5452534 + ... + 5452557.

Almost surely, 2130861092 is an apocalyptic number.

130861092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130861092 is an abundant number, since it is smaller than the sum of its proper divisors (174481484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130861092 is a wasteful number, since it uses less digits than its factorization.

130861092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10905098 (or 10905096 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 130861092 is about 11439.4533086158. The cubic root of 130861092 is about 507.6957330206.

The spelling of 130861092 in words is "one hundred thirty million, eight hundred sixty-one thousand, ninety-two".

Divisors: 1 2 3 4 6 12 10905091 21810182 32715273 43620364 65430546 130861092