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20415392935 = 571921615781
BaseRepresentation
bin10011000000110110…
…100010110010100111
31221200210011102020021
4103000312202302213
5313302320033220
613213444420011
71321624656010
oct230066426247
957623142207
1020415392935
118726a58973
123b590a7607
131c04778682
14db9536007
157e74704aa
hex4c0da2ca7

20415392935 has 24 divisors (see below), whose sum is σ = 29549421216. Its totient is φ = 13262322240.

The previous prime is 20415392923. The next prime is 20415392951. The reversal of 20415392935 is 53929351402.

It is not a de Polignac number, because 20415392935 - 29 = 20415392423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20415392891 and 20415392900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 795256 + ... + 820525.

It is an arithmetic number, because the mean of its divisors is an integer number (1231225884).

Almost surely, 220415392935 is an apocalyptic number.

20415392935 is a deficient number, since it is larger than the sum of its proper divisors (9134028281).

20415392935 is a wasteful number, since it uses less digits than its factorization.

20415392935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615831 (or 1615812 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 20415392935 in words is "twenty billion, four hundred fifteen million, three hundred ninety-two thousand, nine hundred thirty-five".

Divisors: 1 5 7 19 35 95 133 361 665 1805 2527 12635 1615781 8078905 11310467 30699839 56552335 153499195 214898873 583296941 1074494365 2916484705 4083078587 20415392935