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21164034 = 2313725747
BaseRepresentation
bin101000010111…
…1000000000010
31110211020121010
41100233000002
520404222114
62033341350
7344614503
oct120570002
943736533
1021164034
1110a45941
127107856
1345001c8
142b4cbaa
151cd0c59
hex142f002

21164034 has 16 divisors (see below), whose sum is σ = 42638688. Its totient is φ = 7002912.

The previous prime is 21164029. The next prime is 21164047. The reversal of 21164034 is 43046112.

It is a self number, because there is not a number n which added to its sum of digits gives 21164034.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12052 + ... + 13695.

It is an arithmetic number, because the mean of its divisors is an integer number (2664918).

Almost surely, 221164034 is an apocalyptic number.

21164034 is an abundant number, since it is smaller than the sum of its proper divisors (21474654).

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

21164034 is a wasteful number, since it uses less digits than its factorization.

21164034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25889.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 21164034 is about 4600.4384573647. The cubic root of 21164034 is about 276.6089003765.

The spelling of 21164034 in words is "twenty-one million, one hundred sixty-four thousand, thirty-four".

Divisors: 1 2 3 6 137 274 411 822 25747 51494 77241 154482 3527339 7054678 10582017 21164034