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130912128 = 2732195981
BaseRepresentation
bin1111100110110…
…00111110000000
3100010100000200100
413303120332000
5232003142003
620553522400
73146510004
oct763307600
9303300610
10130912128
1167995246
1237a13400
13211779c9
141355a704
15b75dba3
hex7cd8f80

130912128 has 96 divisors (see below), whose sum is σ = 396606600. Its totient is φ = 41333760.

The previous prime is 130912127. The next prime is 130912157. The reversal of 130912128 is 821219031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130912123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18898 + ... + 24878.

Almost surely, 2130912128 is an apocalyptic number.

130912128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130912128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198303300).

130912128 is an abundant number, since it is smaller than the sum of its proper divisors (265694472).

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

130912128 is a wasteful number, since it uses less digits than its factorization.

130912128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020 (or 6005 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 130912128 is about 11441.6837921698. The cubic root of 130912128 is about 507.7617251128.

The spelling of 130912128 in words is "one hundred thirty million, nine hundred twelve thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 64 72 76 96 114 128 144 152 171 192 228 288 304 342 384 456 576 608 684 912 1152 1216 1368 1824 2432 2736 3648 5472 5981 7296 10944 11962 17943 21888 23924 35886 47848 53829 71772 95696 107658 113639 143544 191392 215316 227278 287088 340917 382784 430632 454556 574176 681834 765568 861264 909112 1022751 1148352 1363668 1722528 1818224 2045502 2296704 2727336 3445056 3636448 4091004 5454672 6890112 7272896 8182008 10909344 14545792 16364016 21818688 32728032 43637376 65456064 130912128