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20862681195 = 3519754712907
BaseRepresentation
bin10011011011100000…
…110100000001101011
31222211221211000101010
4103123200310001223
5320211321244240
613330103355003
71335665602266
oct233340640153
958757730333
1020862681195
118936492194
124062a52a63
131c76335c95
14101cac9cdd
15821875280
hex4db83406b

20862681195 has 32 divisors (see below), whose sum is σ = 33613671168. Its totient is φ = 11049187968.

The previous prime is 20862681193. The next prime is 20862681199. The reversal of 20862681195 is 59118626802.

It is not a de Polignac number, because 20862681195 - 21 = 20862681193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20862681193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1609932 + ... + 1622838.

It is an arithmetic number, because the mean of its divisors is an integer number (1050427224).

Almost surely, 220862681195 is an apocalyptic number.

20862681195 is a deficient number, since it is larger than the sum of its proper divisors (12750989973).

20862681195 is a wasteful number, since it uses less digits than its factorization.

20862681195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13659.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 20862681195 in words is "twenty billion, eight hundred sixty-two million, six hundred eighty-one thousand, one hundred ninety-five".

Divisors: 1 3 5 15 197 547 591 985 1641 2735 2955 8205 12907 38721 64535 107759 193605 323277 538795 1616385 2542679 7060129 7628037 12713395 21180387 35300645 38140185 105901935 1390845413 4172536239 6954227065 20862681195