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130912956 = 2233371812
BaseRepresentation
bin1111100110110…
…01001010111100
3100010100001211000
413303121022330
5232003203311
620553530300
73146512266
oct763311274
9303301730
10130912956
1167995929
1237a13990
13211781b5
141355ab36
15b75e056
hex7cd92bc

130912956 has 72 divisors (see below), whose sum is σ = 350513520. Its totient is φ = 42223680.

The previous prime is 130912913. The next prime is 130913053. The reversal of 130912956 is 659219031.

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 130912956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 723186 + ... + 723366.

Almost surely, 2130912956 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 130912956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175256760).

130912956 is an abundant number, since it is smaller than the sum of its proper divisors (219600564).

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

130912956 is a wasteful number, since it uses less digits than its factorization.

130912956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 130912956 is about 11441.7199755981. The cubic root of 130912956 is about 507.7627956167.

The spelling of 130912956 in words is "one hundred thirty million, nine hundred twelve thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 37 54 74 108 111 148 181 222 333 362 444 543 666 724 999 1086 1332 1629 1998 2172 3258 3996 4887 6516 6697 9774 13394 19548 20091 26788 32761 40182 60273 65522 80364 98283 120546 131044 180819 196566 241092 294849 361638 393132 589698 723276 884547 1179396 1212157 1769094 2424314 3538188 3636471 4848628 7272942 10909413 14545884 21818826 32728239 43637652 65456478 130912956