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20576135 = 510493923
BaseRepresentation
bin100111001111…
…1011110000111
31102201101011002
41032133132013
520231414020
62013003515
7336615506
oct116373607
942641132
1020576135
1110684178
126a8359b
134355738
142a3883d
151c16975
hex139f787

20576135 has 8 divisors (see below), whose sum is σ = 24721200. Its totient is φ = 16441024.

The previous prime is 20576131. The next prime is 20576141. The reversal of 20576135 is 53167502.

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 20576135 - 22 = 20576131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20576098 and 20576107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20576131) 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, 3284 + ... + 7206.

It is an arithmetic number, because the mean of its divisors is an integer number (3090150).

Almost surely, 220576135 is an apocalyptic number.

20576135 is a deficient number, since it is larger than the sum of its proper divisors (4145065).

20576135 is a wasteful number, since it uses less digits than its factorization.

20576135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 20576135 is about 4536.0924814205. The cubic root of 20576135 is about 274.0235785204.

It can be divided in two parts, 2057 and 6135, that added together give a 13-th power (8192 = 213).

The spelling of 20576135 in words is "twenty million, five hundred seventy-six thousand, one hundred thirty-five".

Divisors: 1 5 1049 3923 5245 19615 4115227 20576135