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23205126 = 237278929
BaseRepresentation
bin101100010000…
…1010100000110
31121122221110010
41120201110012
521420031001
62145211050
7401145300
oct130412406
947587403
1023205126
111210a39a
127930a86
134a66259
143120970
1520858d6
hex1621506

23205126 has 24 divisors (see below), whose sum is σ = 53988120. Its totient is φ = 6629952.

The previous prime is 23205109. The next prime is 23205181. The reversal of 23205126 is 62150232.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39171 + ... + 39758.

It is an arithmetic number, because the mean of its divisors is an integer number (2249505).

Almost surely, 223205126 is an apocalyptic number.

23205126 is an abundant number, since it is smaller than the sum of its proper divisors (30782994).

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

23205126 is a wasteful number, since it uses less digits than its factorization.

23205126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78948 (or 78941 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 23205126 is about 4817.1699160399. The cubic root of 23205126 is about 285.2296333333.

Adding to 23205126 its reverse (62150232), we get a palindrome (85355358).

The spelling of 23205126 in words is "twenty-three million, two hundred five thousand, one hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 78929 157858 236787 473574 552503 1105006 1657509 3315018 3867521 7735042 11602563 23205126