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130102344 = 23321806977
BaseRepresentation
bin1111100000100…
…11010001001000
3100001210212212100
413300103101020
5231301233334
620524313400
73136565061
oct760232110
9301725770
10130102344
11674918a9
12376a2860
1320c53248
14133c9568
15b64dc99
hex7c13448

130102344 has 24 divisors (see below), whose sum is σ = 352360710. Its totient is φ = 43367424.

The previous prime is 130102339. The next prime is 130102351. The reversal of 130102344 is 443201031.

It can be written as a sum of positive squares in only one way, i.e., 108368100 + 21734244 = 10410^2 + 4662^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 903417 + ... + 903560.

Almost surely, 2130102344 is an apocalyptic number.

It is an amenable number.

130102344 is an abundant number, since it is smaller than the sum of its proper divisors (222258366).

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

130102344 is a wasteful number, since it uses less digits than its factorization.

130102344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806989 (or 1806982 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130102344 is about 11406.2414493119. The cubic root of 130102344 is about 506.7126039451.

Adding to 130102344 its reverse (443201031), we get a palindrome (573303375).

The spelling of 130102344 in words is "one hundred thirty million, one hundred two thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1806977 3613954 5420931 7227908 10841862 14455816 16262793 21683724 32525586 43367448 65051172 130102344