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20576039 = 111091312
BaseRepresentation
bin100111001111…
…1011100100111
31102201101000112
41032133130213
520231413124
62013003235
7336615311
oct116373447
942641015
1020576039
11106840a0
126a8351b
134355693
142a387b1
151c1690e
hex139f727

20576039 has 12 divisors (see below), whose sum is σ = 22826760. Its totient is φ = 18392400.

The previous prime is 20576029. The next prime is 20576041. The reversal of 20576039 is 93067502.

It is not a de Polignac number, because 20576039 - 220 = 19527463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20575996 and 20576014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20576009) 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, 157004 + ... + 157134.

It is an arithmetic number, because the mean of its divisors is an integer number (1902230).

Almost surely, 220576039 is an apocalyptic number.

20576039 is a deficient number, since it is larger than the sum of its proper divisors (2250721).

20576039 is a wasteful number, since it uses less digits than its factorization.

20576039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 20576039 is about 4536.0818996134. The cubic root of 20576039 is about 274.0231523584.

The spelling of 20576039 in words is "twenty million, five hundred seventy-six thousand, thirty-nine".

Divisors: 1 11 109 131 1199 1441 14279 17161 157069 188771 1870549 20576039