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20707386345462 = 23109293108063721
BaseRepresentation
bin1001011010101010100000…
…11010000100011111110110
32201022121101100200010112010
410231111100122010133312
510203232211401023322
6112012501510305050
74235026223526165
oct455252032043766
981277340603463
1020707386345462
116663a5382a373
1223a5291958186
13b7290cac709b
1451835852b3dc
1525d9a762020c
hex12d5506847f6

20707386345462 has 32 divisors (see below), whose sum is σ = 41937369233760. Its totient is φ = 6815794947840.

The previous prime is 20707386345433. The next prime is 20707386345463. The reversal of 20707386345462 is 26454368370702.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20707386345463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53840239 + ... + 54223482.

It is an arithmetic number, because the mean of its divisors is an integer number (1310542788555).

Almost surely, 220707386345462 is an apocalyptic number.

20707386345462 is an abundant number, since it is smaller than the sum of its proper divisors (21229982888298).

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

20707386345462 is a wasteful number, since it uses less digits than its factorization.

20707386345462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108064128.

The product of its (nonzero) digits is 40642560, while the sum is 57.

The spelling of 20707386345462 in words is "twenty trillion, seven hundred seven billion, three hundred eighty-six million, three hundred forty-five thousand, four hundred sixty-two".

Divisors: 1 2 3 6 109 218 293 327 586 654 879 1758 31937 63874 95811 191622 108063721 216127442 324191163 648382326 11778945589 23557891178 31662670253 35336836767 63325340506 70673673534 94988010759 189976021518 3451231057577 6902462115154 10353693172731 20707386345462