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20764802373 = 372141257159
BaseRepresentation
bin10011010101101011…
…011011110101000101
31222121010122020212120
4103111223123311011
5320011242133443
613312245440153
71333366623300
oct232553336505
958533566776
1020764802373
11889620a3a7
124036110059
131c5bc85b13
14100dacbb37
15817e8e083
hex4d5adbd45

20764802373 has 12 divisors (see below), whose sum is σ = 32206632480. Its totient is φ = 11865601272.

The previous prime is 20764802351. The next prime is 20764802393. The reversal of 20764802373 is 37320846702.

It is not a de Polignac number, because 20764802373 - 213 = 20764794181 is a prime.

It is a super-2 number, since 2×207648023732 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20764802393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70628433 + ... + 70628726.

It is an arithmetic number, because the mean of its divisors is an integer number (2683886040).

Almost surely, 220764802373 is an apocalyptic number.

It is an amenable number.

20764802373 is a deficient number, since it is larger than the sum of its proper divisors (11441830107).

20764802373 is a wasteful number, since it uses less digits than its factorization.

20764802373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141257176 (or 141257169 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 20764802373 in words is "twenty billion, seven hundred sixty-four million, eight hundred two thousand, three hundred seventy-three".

Divisors: 1 3 7 21 49 147 141257159 423771477 988800113 2966400339 6921600791 20764802373