Search a number
-
+
56787430480 = 24511411573931
BaseRepresentation
bin110100111000110010…
…110110110001010000
312102120121120100211221
4310320302312301100
51412300040233410
642030543414424
74050150123544
oct647062666120
9172517510757
1056787430480
11220a102a030
12b009bb4414
13548000a391
142a69d55a24
1517256c04da
hexd38cb6c50

56787430480 has 80 divisors (see below), whose sum is σ = 147546681408. Its totient is φ = 20146304000.

The previous prime is 56787430459. The next prime is 56787430519. The reversal of 56787430480 is 8403478765.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 750886 + ... + 823045.

Almost surely, 256787430480 is an apocalyptic number.

It is an amenable number.

56787430480 is an abundant number, since it is smaller than the sum of its proper divisors (90759250928).

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

56787430480 is a wasteful number, since it uses less digits than its factorization.

56787430480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573996 (or 1573990 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 56787430480 in words is "fifty-six billion, seven hundred eighty-seven million, four hundred thirty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 41 44 55 80 82 88 110 164 176 205 220 328 410 440 451 656 820 880 902 1640 1804 2255 3280 3608 4510 7216 9020 18040 36080 1573931 3147862 6295724 7869655 12591448 15739310 17313241 25182896 31478620 34626482 62957240 64531171 69252964 86566205 125914480 129062342 138505928 173132410 258124684 277011856 322655855 346264820 516249368 645311710 692529640 709842881 1032498736 1290623420 1385059280 1419685762 2581246840 2839371524 3549214405 5162493680 5678743048 7098428810 11357486096 14196857620 28393715240 56787430480