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21796952 = 2319143401
BaseRepresentation
bin101001100100…
…1100001011000
31112000101210112
41103021201120
521040000302
62055103452
7353161652
oct123114130
945011715
1021796952
1111338411
127371b88
134692308
142c756d2
151da8552
hex14c9858

21796952 has 16 divisors (see below), whose sum is σ = 43020600. Its totient is φ = 10324800.

The previous prime is 21796927. The next prime is 21796961. The reversal of 21796952 is 25969712.

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, 71549 + ... + 71852.

Almost surely, 221796952 is an apocalyptic number.

It is an amenable number.

21796952 is a deficient number, since it is larger than the sum of its proper divisors (21223648).

21796952 is a wasteful number, since it uses less digits than its factorization.

21796952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143426 (or 143422 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 21796952 is about 4668.7205956236. The cubic root of 21796952 is about 279.3392241656.

The spelling of 21796952 in words is "twenty-one million, seven hundred ninety-six thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 19 38 76 152 143401 286802 573604 1147208 2724619 5449238 10898476 21796952