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23109048 = 23321931663
BaseRepresentation
bin101100000100…
…1110110111000
31121111001122200
41120021312320
521403442143
62143150200
7400265214
oct130116670
947431580
1023109048
1112054196
1278a5360
134a315c1
1430d7944
1520671d3
hex1609db8

23109048 has 48 divisors (see below), whose sum is σ = 62949120. Its totient is φ = 7658496.

The previous prime is 23109041. The next prime is 23109049. The reversal of 23109048 is 84090132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23109041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13065 + ... + 14727.

It is an arithmetic number, because the mean of its divisors is an integer number (1311440).

Almost surely, 223109048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23109048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31474560).

23109048 is an abundant number, since it is smaller than the sum of its proper divisors (39840072).

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

23109048 is a wasteful number, since it uses less digits than its factorization.

23109048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 1861 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 23109048 is about 4807.1871193038. The cubic root of 23109048 is about 284.8354359287.

The spelling of 23109048 in words is "twenty-three million, one hundred nine thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 193 386 579 772 1158 1544 1663 1737 2316 3326 3474 4632 4989 6652 6948 9978 13304 13896 14967 19956 29934 39912 59868 119736 320959 641918 962877 1283836 1925754 2567672 2888631 3851508 5777262 7703016 11554524 23109048