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130669308 = 223371119827
BaseRepresentation
bin1111100100111…
…01101011111100
3100002212200121000
413302131223330
5231422404213
620544410300
73144446040
oct762355374
9302780530
10130669308
1167839870
1237916990
13210c1323
14134d6020
15b711c73
hex7c9dafc

130669308 has 192 divisors, whose sum is σ = 445132800. Its totient is φ = 32114880.

The previous prime is 130669291. The next prime is 130669321. The reversal of 130669308 is 803966031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157591 + ... + 158417.

It is an arithmetic number, because the mean of its divisors is an integer number (2318400).

Almost surely, 2130669308 is an apocalyptic number.

130669308 is a gapful number since it is divisible by the number (18) 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 130669308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222566400).

130669308 is an abundant number, since it is smaller than the sum of its proper divisors (314463492).

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

130669308 is a wasteful number, since it uses less digits than its factorization.

130669308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 130669308 is about 11431.0676666705. The cubic root of 130669308 is about 507.4475932522.

The spelling of 130669308 in words is "one hundred thirty million, six hundred sixty-nine thousand, three hundred eight".