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20210964 = 2231684247
BaseRepresentation
bin100110100011…
…0010100010100
31102000211020020
41031012110110
520133222324
62001105140
7333535044
oct115062424
942024206
1020210964
1110454884
1269281b0
134258467
142981724
151b93679
hex1346514

20210964 has 12 divisors (see below), whose sum is σ = 47158944. Its totient is φ = 6736984.

The previous prime is 20210963. The next prime is 20211001. The reversal of 20210964 is 46901202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210963) 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, 842112 + ... + 842135.

It is an arithmetic number, because the mean of its divisors is an integer number (3929912).

Almost surely, 220210964 is an apocalyptic number.

It is an amenable number.

20210964 is an abundant number, since it is smaller than the sum of its proper divisors (26947980).

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

20210964 is a wasteful number, since it uses less digits than its factorization.

20210964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684254 (or 1684252 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20210964 is about 4495.6605743761. The cubic root of 20210964 is about 272.3928327577.

The spelling of 20210964 in words is "twenty million, two hundred ten thousand, nine hundred sixty-four".

Divisors: 1 2 3 4 6 12 1684247 3368494 5052741 6736988 10105482 20210964