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20570264712 = 2333238939863
BaseRepresentation
bin10011001010000101…
…010101010010001000
31222002120120201101000
4103022011111102020
5314111441432322
613241100055000
71325515236144
oct231205252210
958076521330
1020570264712
1187a6418378
123ba0b34460
131c2a891b8a
14dd1d2c224
15805d633ac
hex4ca155488

20570264712 has 64 divisors (see below), whose sum is σ = 57164976000. Its totient is φ = 6853712832.

The previous prime is 20570264683. The next prime is 20570264719. The reversal of 20570264712 is 21746207502.

It is a happy number.

20570264712 is a `hidden beast` number, since 2 + 0 + 5 + 7 + 0 + 2 + 647 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20570264719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496093 + ... + 535955.

It is an arithmetic number, because the mean of its divisors is an integer number (893202750).

Almost surely, 220570264712 is an apocalyptic number.

It is an amenable number.

20570264712 is an abundant number, since it is smaller than the sum of its proper divisors (36594711288).

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

20570264712 is a wasteful number, since it uses less digits than its factorization.

20570264712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42267 (or 42257 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 20570264712 in words is "twenty billion, five hundred seventy million, two hundred sixty-four thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 2389 4778 7167 9556 14334 19112 21501 28668 39863 43002 57336 64503 79726 86004 119589 129006 159452 172008 239178 258012 318904 358767 478356 516024 717534 956712 1076301 1435068 2152602 2870136 4305204 8610408 95232707 190465414 285698121 380930828 571396242 761861656 857094363 1142792484 1714188726 2285584968 2571283089 3428377452 5142566178 6856754904 10285132356 20570264712