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130144975 = 5231307547
BaseRepresentation
bin1111100000111…
…01101011001111
3100001220001100021
413300131223033
5231304114400
620525243011
73140133262
oct760355317
9301801307
10130144975
1167510934
1237703467
1320c6977c
14133dacd9
15b65b71a
hex7c1dacf

130144975 has 24 divisors (see below), whose sum is σ = 167433728. Its totient is φ = 100245600.

The previous prime is 130144969. The next prime is 130144991. The reversal of 130144975 is 579441031.

It is not a de Polignac number, because 130144975 - 221 = 128047823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130144975.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237652 + ... + 238198.

Almost surely, 2130144975 is an apocalyptic number.

130144975 is a deficient number, since it is larger than the sum of its proper divisors (37288753).

130144975 is a wasteful number, since it uses less digits than its factorization.

130144975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 130144975 is about 11408.1100538170. The cubic root of 130144975 is about 506.7679432146.

The spelling of 130144975 in words is "one hundred thirty million, one hundred forty-four thousand, nine hundred seventy-five".

Divisors: 1 5 25 31 155 307 547 775 1535 2735 7675 9517 13675 16957 47585 84785 167929 237925 423925 839645 4198225 5205799 26028995 130144975