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130144293 = 3331612549
BaseRepresentation
bin1111100000111…
…01100000100101
3100001220000102000
413300131200211
5231304104133
620525235513
73140131266
oct760354045
9301800360
10130144293
1167510374
1237702b99
1320c69376
14133da96d
15b65b413
hex7c1d825

130144293 has 32 divisors (see below), whose sum is σ = 202368000. Its totient is φ = 82555200.

The previous prime is 130144271. The next prime is 130144303. The reversal of 130144293 is 392441031.

130144293 is a `hidden beast` number, since 130 + 1 + 442 + 93 = 666.

It is not a de Polignac number, because 130144293 - 213 = 130136101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130144213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49783 + ... + 52331.

It is an arithmetic number, because the mean of its divisors is an integer number (6324000).

Almost surely, 2130144293 is an apocalyptic number.

It is an amenable number.

130144293 is a deficient number, since it is larger than the sum of its proper divisors (72223707).

130144293 is a wasteful number, since it uses less digits than its factorization.

130144293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 130144293 is about 11408.0801627618. The cubic root of 130144293 is about 506.7670580060.

The spelling of 130144293 in words is "one hundred thirty million, one hundred forty-four thousand, two hundred ninety-three".

Divisors: 1 3 9 27 31 61 93 183 279 549 837 1647 1891 2549 5673 7647 17019 22941 51057 68823 79019 155489 237057 466467 711171 1399401 2133513 4198203 4820159 14460477 43381431 130144293