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20968096 = 251934487
BaseRepresentation
bin100111111111…
…1001010100000
31110110021211011
41033333022200
520331434341
62025230304
7343140322
oct117771240
943407734
1020968096
1110921706
127032394
134461c76
142adb612
151c92b81
hex13ff2a0

20968096 has 24 divisors (see below), whose sum is σ = 43454880. Its totient is φ = 9931968.

The previous prime is 20968093. The next prime is 20968109. The reversal of 20968096 is 69086902.

It is a happy number.

It is a super-2 number, since 2×209680962 = 879322099730432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20968091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16636 + ... + 17851.

It is an arithmetic number, because the mean of its divisors is an integer number (1810620).

Almost surely, 220968096 is an apocalyptic number.

It is an amenable number.

20968096 is an abundant number, since it is smaller than the sum of its proper divisors (22486784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20968096 is a wasteful number, since it uses less digits than its factorization.

20968096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34516 (or 34508 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 20968096 is about 4579.0933600441. The cubic root of 20968096 is about 275.7526314010.

The spelling of 20968096 in words is "twenty million, nine hundred sixty-eight thousand, ninety-six".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 34487 68974 137948 275896 551792 655253 1103584 1310506 2621012 5242024 10484048 20968096