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501568422472 = 231321840120161
BaseRepresentation
bin1110100110001111100…
…11101100001001001000
31202221122011110211101201
413103013303230021020
531204203004004342
61022230051553544
751144222150535
oct7230763541110
91687564424351
10501568422472
11183794331517
128125a2bb8b4
13383b4078800
141a3c1657d8c
15d0a8695db7
hex74c7cec248

501568422472 has 48 divisors (see below), whose sum is σ = 1018452985380. Its totient is φ = 231469056000.

The previous prime is 501568422413. The next prime is 501568422479. The reversal of 501568422472 is 274224865105.

It can be written as a sum of positive squares in 6 ways, for example, as 93970450116 + 407597972356 = 306546^2 + 638434^2 .

It is not an unprimeable number, because it can be changed into a prime (501568422479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24868072 + ... + 24888232.

Almost surely, 2501568422472 is an apocalyptic number.

501568422472 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

501568422472 is an abundant number, since it is smaller than the sum of its proper divisors (516884562908).

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

501568422472 is a wasteful number, since it uses less digits than its factorization.

501568422472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38594 (or 38577 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 46.

The spelling of 501568422472 in words is "five hundred one billion, five hundred sixty-eight million, four hundred twenty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 18401 20161 36802 40322 73604 80644 147208 161288 239213 262093 478426 524186 956852 1048372 1913704 2096744 3109769 3407209 6219538 6814418 12439076 13628836 24878152 27257672 370982561 741965122 1483930244 2967860488 4822773293 9645546586 19291093172 38582186344 62696052809 125392105618 250784211236 501568422472