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130655870 = 2523568069
BaseRepresentation
bin1111100100110…
…10011001111110
3100002212000011022
413302122121332
5231421441440
620544224142
73144361622
oct762323176
9302760138
10130655870
116782a764
123790b052
13210b8187
14134d1182
15b70ccb5
hex7c9a67e

130655870 has 16 divisors (see below), whose sum is σ = 245406240. Its totient is φ = 49989984.

The previous prime is 130655849. The next prime is 130655879. The reversal of 130655870 is 78556031.

It is a self number, because there is not a number n which added to its sum of digits gives 130655870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130655879) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 283805 + ... + 284264.

It is an arithmetic number, because the mean of its divisors is an integer number (15337890).

Almost surely, 2130655870 is an apocalyptic number.

130655870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130655870 is a deficient number, since it is larger than the sum of its proper divisors (114750370).

130655870 is a wasteful number, since it uses less digits than its factorization.

130655870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568099.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 130655870 is about 11430.4798674421. The cubic root of 130655870 is about 507.4301973933.

The spelling of 130655870 in words is "one hundred thirty million, six hundred fifty-five thousand, eight hundred seventy".

Divisors: 1 2 5 10 23 46 115 230 568069 1136138 2840345 5680690 13065587 26131174 65327935 130655870