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54686757904 = 241721921812
BaseRepresentation
bin110010111011100101…
…011011010000010000
312020011012210010210221
4302323211123100100
51343444302223104
641042303002424
73644121525652
oct627345332020
9166135703727
1054686757904
1121213281699
12a722599414
135206a4535c
14290ad726d2
151651073c54
hexcbb95b410

54686757904 has 135 divisors (see below), whose sum is σ = 119450560311. Its totient is φ = 24245775360.

The previous prime is 54686757857. The next prime is 54686757919. The reversal of 54686757904 is 40975768645.

It is a happy number.

The square root of 54686757904 is 233852.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7705328400 + 46981429504 = 87780^2 + 216752^2 .

It is a Duffinian 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 26 ways as a sum of consecutive naturals, for example, 302136694 + ... + 302136874.

Almost surely, 254686757904 is an apocalyptic number.

54686757904 is the 233852-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54686757904

54686757904 is an abundant number, since it is smaller than the sum of its proper divisors (64763802407).

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

54686757904 is a wasteful number, since it uses less digits than its factorization.

54686757904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 54686757904 in words is "fifty-four billion, six hundred eighty-six million, seven hundred fifty-seven thousand, nine hundred four".

Divisors: 1 2 4 8 16 17 19 34 38 68 76 136 152 181 272 289 304 323 361 362 578 646 722 724 1156 1292 1444 1448 2312 2584 2888 2896 3077 3439 4624 5168 5491 5776 6137 6154 6878 10982 12274 12308 13756 21964 24548 24616 27512 32761 43928 49096 49232 52309 55024 58463 65341 65522 87856 98192 104329 104618 116926 130682 131044 208658 209236 233852 261364 262088 417316 418472 467704 522728 524176 556937 622459 834632 836944 935408 993871 1045456 1110797 1113874 1244918 1669264 1987742 2221594 2227748 2489836 3975484 4443188 4455496 4979672 7950968 8886376 8910992 9467929 9959344 10581803 11826721 15901936 17772752 18883549 18935858 21163606 23653442 37767098 37871716 42327212 47306884 75534196 75743432 84654424 94613768 151068392 151486864 169308848 179890651 189227536 201054257 302136784 359781302 402108514 719562604 804217028 1439125208 1608434056 2878250416 3216868112 3417922369 6835844738 13671689476 27343378952 54686757904