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23210490 = 235773683
BaseRepresentation
bin101100010001…
…0100111111010
31121200012210210
41120202213322
521420213430
62145251550
7401200032
oct130424772
947605723
1023210490
1112113426
127933bb6
134a68824
1431228c2
1520872b0
hex16229fa

23210490 has 16 divisors (see below), whose sum is σ = 55705248. Its totient is φ = 6189456.

The previous prime is 23210489. The next prime is 23210503. The reversal of 23210490 is 9401232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386812 + ... + 386871.

It is an arithmetic number, because the mean of its divisors is an integer number (3481578).

Almost surely, 223210490 is an apocalyptic number.

23210490 is an abundant number, since it is smaller than the sum of its proper divisors (32494758).

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

23210490 is a wasteful number, since it uses less digits than its factorization.

23210490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773693.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 23210490 is about 4817.7266423076. The cubic root of 23210490 is about 285.2516091370.

The spelling of 23210490 in words is "twenty-three million, two hundred ten thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 773683 1547366 2321049 3868415 4642098 7736830 11605245 23210490