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130925985 = 3513166629
BaseRepresentation
bin1111100110111…
…00010110100001
3100010100201200120
413303130112201
5232004112420
620554110453
73146565261
oct763342641
9303321616
10130925985
11679a46a3
1237a1b429
13211810c8
14135617a1
15b762d40
hex7cdc5a1

130925985 has 16 divisors (see below), whose sum is σ = 211083840. Its totient is φ = 69293120.

The previous prime is 130925933. The next prime is 130926023. The reversal of 130925985 is 589529031.

It is not a de Polignac number, because 130925985 - 213 = 130917793 is a prime.

It is a super-2 number, since 2×1309259852 = 34283227096440450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31350 + ... + 35279.

It is an arithmetic number, because the mean of its divisors is an integer number (13192740).

Almost surely, 2130925985 is an apocalyptic number.

130925985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130925985 is a deficient number, since it is larger than the sum of its proper divisors (80157855).

130925985 is a wasteful number, since it uses less digits than its factorization.

130925985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66768.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 130925985 is about 11442.2893251307. The cubic root of 130925985 is about 507.7796399439.

The spelling of 130925985 in words is "one hundred thirty million, nine hundred twenty-five thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 131 393 655 1965 66629 199887 333145 999435 8728399 26185197 43641995 130925985