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130171392 = 2932134153
BaseRepresentation
bin1111100001001…
…00001000000000
3100001221101120200
413300210020000
5231310441032
620530005200
73140303301
oct760441000
9301841520
10130171392
116752976a
1237716800
1320c787c0
14134067a8
15b66447c
hex7c24200

130171392 has 240 divisors, whose sum is σ = 422269848. Its totient is φ = 38338560.

The previous prime is 130171373. The next prime is 130171409. The reversal of 130171392 is 293171031.

It can be written as a sum of positive squares in 4 ways, for example, as 68956416 + 61214976 = 8304^2 + 7824^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2456038 + ... + 2456090.

Almost surely, 2130171392 is an apocalyptic number.

130171392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130171392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211134924).

130171392 is an abundant number, since it is smaller than the sum of its proper divisors (292098456).

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

130171392 is a wasteful number, since it uses less digits than its factorization.

130171392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 130171392 is about 11409.2678117397. The cubic root of 130171392 is about 506.8022290385.

The spelling of 130171392 in words is "one hundred thirty million, one hundred seventy-one thousand, three hundred ninety-two".