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57306595220 = 22574710979901
BaseRepresentation
bin110101010111101111…
…010011111110010100
312110220210110122222122
4311113233103332110
51414330442021340
642154251115112
74066053010430
oct652757237624
9173823418878
1057306595220
11223380961a6
12b133a42a98
135533742654
142ab8c999c0
151756071db5
hexd57bd3f94

57306595220 has 96 divisors (see below), whose sum is σ = 141752540160. Its totient is φ = 19053273600.

The previous prime is 57306595207. The next prime is 57306595253. The reversal of 57306595220 is 2259560375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677270 + ... + 757170.

It is an arithmetic number, because the mean of its divisors is an integer number (1476588960).

Almost surely, 257306595220 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 57306595220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70876270080).

57306595220 is an abundant number, since it is smaller than the sum of its proper divisors (84445944940).

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

57306595220 is a wasteful number, since it uses less digits than its factorization.

57306595220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80073 (or 80071 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 57306595220 in words is "fifty-seven billion, three hundred six million, five hundred ninety-five thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 47 70 94 109 140 188 218 235 329 436 470 545 658 763 940 1090 1316 1526 1645 2180 3052 3290 3815 5123 6580 7630 10246 15260 20492 25615 35861 51230 71722 79901 102460 143444 159802 179305 319604 358610 399505 559307 717220 799010 1118614 1598020 2237228 2796535 3755347 5593070 7510694 8709209 11186140 15021388 17418418 18776735 26287429 34836836 37553470 43546045 52574858 60964463 75106940 87092090 105149716 121928926 131437145 174184180 243857852 262874290 304822315 409332823 525748580 609644630 818665646 1219289260 1637331292 2046664115 2865329761 4093328230 5730659522 8186656460 11461319044 14326648805 28653297610 57306595220