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20675832 = 233861493
BaseRepresentation
bin100111011011…
…1110011111000
31102220102220120
41032313303320
520243111312
62015053240
7340512252
oct116676370
942812816
1020675832
1110742071
126b11220
13438bc28
142a62cd2
151c3628c
hex13b7cf8

20675832 has 16 divisors (see below), whose sum is σ = 51689640. Its totient is φ = 6891936.

The previous prime is 20675813. The next prime is 20675917. The reversal of 20675832 is 23857602.

It is a junction number, because it is equal to n+sod(n) for n = 20675793 and 20675802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430723 + ... + 430770.

Almost surely, 220675832 is an apocalyptic number.

It is an amenable number.

20675832 is an abundant number, since it is smaller than the sum of its proper divisors (31013808).

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

20675832 is a wasteful number, since it uses less digits than its factorization.

20675832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861502 (or 861498 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 20675832 is about 4547.0685061917. The cubic root of 20675832 is about 274.4654386963.

The spelling of 20675832 in words is "twenty million, six hundred seventy-five thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 861493 1722986 2584479 3445972 5168958 6891944 10337916 20675832