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130144302 = 2327230239
BaseRepresentation
bin1111100000111…
…01100000101110
3100001220000102100
413300131200232
5231304104202
620525235530
73140131311
oct760354056
9301800370
10130144302
1167510382
1237702ba6
1320c69382
14133da978
15b65b41c
hex7c1d82e

130144302 has 12 divisors (see below), whose sum is σ = 281979360. Its totient is φ = 43381428.

The previous prime is 130144271. The next prime is 130144303. The reversal of 130144302 is 203441031.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7230239 = 130144302 / (1 + 3 + 0 + 1 + 4 + 4 + 3 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130144303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3615102 + ... + 3615137.

It is an arithmetic number, because the mean of its divisors is an integer number (23498280).

Almost surely, 2130144302 is an apocalyptic number.

130144302 is an abundant number, since it is smaller than the sum of its proper divisors (151835058).

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

130144302 is a wasteful number, since it uses less digits than its factorization.

130144302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230247 (or 7230244 counting only the distinct ones).

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

The square root of 130144302 is about 11408.0805572191. The cubic root of 130144302 is about 506.7670696877.

Adding to 130144302 its reverse (203441031), we get a palindrome (333585333).

The spelling of 130144302 in words is "one hundred thirty million, one hundred forty-four thousand, three hundred two".

Divisors: 1 2 3 6 9 18 7230239 14460478 21690717 43381434 65072151 130144302