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23279028 = 22319102101
BaseRepresentation
bin101100011001…
…1010110110100
31121210200211020
41120303112310
521424412103
62150541140
7401603613
oct130632664
947720736
1023279028
111215a973
1279677b0
134a90a96
14313d87a
15209c753
hex16335b4

23279028 has 24 divisors (see below), whose sum is σ = 57177120. Its totient is φ = 7351200.

The previous prime is 23278999. The next prime is 23279033. The reversal of 23279028 is 82097232.

It is a self number, because there is not a number n which added to its sum of digits gives 23279028.

It is a congruent number.

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, 50823 + ... + 51278.

It is an arithmetic number, because the mean of its divisors is an integer number (2382380).

Almost surely, 223279028 is an apocalyptic number.

It is an amenable number.

23279028 is an abundant number, since it is smaller than the sum of its proper divisors (33898092).

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

23279028 is a wasteful number, since it uses less digits than its factorization.

23279028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102127 (or 102125 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 23279028 is about 4824.8345049338. The cubic root of 23279028 is about 285.5321053370.

The spelling of 23279028 in words is "twenty-three million, two hundred seventy-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 102101 204202 306303 408404 612606 1225212 1939919 3879838 5819757 7759676 11639514 23279028