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20932968 = 2337124601
BaseRepresentation
bin100111111011…
…0100101101000
31110101111122010
41033312211220
520324323333
62024355520
7342633030
oct117664550
943344563
1020932968
11108a8281
127015ba0
13444bc94
142acc8c0
151c87563
hex13f6968

20932968 has 32 divisors (see below), whose sum is σ = 59808960. Its totient is φ = 5980800.

The previous prime is 20932963. The next prime is 20932981. The reversal of 20932968 is 86923902.

It is not an unprimeable number, because it can be changed into a prime (20932963) 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, 62133 + ... + 62468.

It is an arithmetic number, because the mean of its divisors is an integer number (1869030).

Almost surely, 220932968 is an apocalyptic number.

20932968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20932968 is an abundant number, since it is smaller than the sum of its proper divisors (38875992).

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

20932968 is a wasteful number, since it uses less digits than its factorization.

20932968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124617 (or 124613 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 20932968 is about 4575.2560584081. The cubic root of 20932968 is about 275.5985552140.

The spelling of 20932968 in words is "twenty million, nine hundred thirty-two thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 124601 249202 373803 498404 747606 872207 996808 1495212 1744414 2616621 2990424 3488828 5233242 6977656 10466484 20932968