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20260170839 = 192346361947
BaseRepresentation
bin10010110111100110…
…011010110001010111
31221021222002022112202
4102313212122301113
5312443100431324
613150221435115
71315031416316
oct226746326127
957258068482
1020260170839
11865737a247
123b1510ba9b
131bab56b88c
14da2a8c27d
157d8a0d8ae
hex4b799ac57

20260170839 has 8 divisors (see below), whose sum is σ = 22253735040. Its totient is φ = 18359330616.

The previous prime is 20260170817. The next prime is 20260170899. The reversal of 20260170839 is 93807106202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20260170839 - 28 = 20260170583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260170899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23180537 + ... + 23181410.

It is an arithmetic number, because the mean of its divisors is an integer number (2781716880).

Almost surely, 220260170839 is an apocalyptic number.

20260170839 is a deficient number, since it is larger than the sum of its proper divisors (1993564201).

20260170839 is a wasteful number, since it uses less digits than its factorization.

20260170839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46361989.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 20260170839 in words is "twenty billion, two hundred sixty million, one hundred seventy thousand, eight hundred thirty-nine".

Divisors: 1 19 23 437 46361947 880876993 1066324781 20260170839