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130634676 = 223229157797
BaseRepresentation
bin1111100100101…
…01001110110100
3100002210221002100
413302111032310
5231420302201
620543542100
73144243054
oct762251664
9302727070
10130634676
1167815847
12378ba930
13210ab633
14134c7564
15b706886
hex7c953b4

130634676 has 72 divisors (see below), whose sum is σ = 344209320. Its totient is φ = 41723136.

The previous prime is 130634663. The next prime is 130634677. The reversal of 130634676 is 676436031.

It is a happy number.

130634676 is a `hidden beast` number, since 1 + 306 + 346 + 7 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10732176 + 119902500 = 3276^2 + 10950^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 130634676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130634677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163510 + ... + 164306.

It is an arithmetic number, because the mean of its divisors is an integer number (4780685).

Almost surely, 2130634676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130634676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172104660).

130634676 is an abundant number, since it is smaller than the sum of its proper divisors (213574644).

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

130634676 is a wasteful number, since it uses less digits than its factorization.

130634676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 130634676 is about 11429.5527471551. The cubic root of 130634676 is about 507.4027587558.

The spelling of 130634676 in words is "one hundred thirty million, six hundred thirty-four thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 157 174 261 314 348 471 522 628 797 942 1044 1413 1594 1884 2391 2826 3188 4553 4782 5652 7173 9106 9564 13659 14346 18212 23113 27318 28692 40977 46226 54636 69339 81954 92452 125129 138678 163908 208017 250258 277356 375387 416034 500516 750774 832068 1126161 1501548 2252322 3628741 4504644 7257482 10886223 14514964 21772446 32658669 43544892 65317338 130634676