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130646172 = 22341265541
BaseRepresentation
bin1111100100110…
…00000010011100
3100002211111212010
413302120002130
5231421134142
620544111220
73144321426
oct762300234
9302744763
10130646172
1167823448
1237905510
13210b3937
14134cb816
15b709e9c
hex7c9809c

130646172 has 24 divisors (see below), whose sum is σ = 312277392. Its totient is φ = 42486400.

The previous prime is 130646143. The next prime is 130646209. The reversal of 130646172 is 271646031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132279 + ... + 133262.

It is an arithmetic number, because the mean of its divisors is an integer number (13011558).

Almost surely, 2130646172 is an apocalyptic number.

130646172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130646172 is an abundant number, since it is smaller than the sum of its proper divisors (181631220).

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

130646172 is a wasteful number, since it uses less digits than its factorization.

130646172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265589 (or 265587 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 130646172 is about 11430.0556429092. The cubic root of 130646172 is about 507.4176423257.

The spelling of 130646172 in words is "one hundred thirty million, six hundred forty-six thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 265541 531082 796623 1062164 1593246 3186492 10887181 21774362 32661543 43548724 65323086 130646172