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23680860 = 2235756383
BaseRepresentation
bin101101001010…
…1011101011100
31122120010000220
41122111131130
522030241420
62203321340
7405166260
oct132253534
948503026
1023680860
1112404865
127b20250
134ba1958
1432060a0
15212b840
hex169575c

23680860 has 48 divisors (see below), whose sum is σ = 75780096. Its totient is φ = 5412672.

The previous prime is 23680841. The next prime is 23680879. The reversal of 23680860 is 6808632.

It is an interprime number because it is at equal distance from previous prime (23680841) and next prime (23680879).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27772 + ... + 28611.

It is an arithmetic number, because the mean of its divisors is an integer number (1578752).

Almost surely, 223680860 is an apocalyptic number.

23680860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23680860 is an abundant number, since it is smaller than the sum of its proper divisors (52099236).

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

23680860 is a wasteful number, since it uses less digits than its factorization.

23680860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56402 (or 56400 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 23680860 is about 4866.2983878920. The cubic root of 23680860 is about 287.1656503845.

The spelling of 23680860 in words is "twenty-three million, six hundred eighty thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 56383 112766 169149 225532 281915 338298 394681 563830 676596 789362 845745 1127660 1184043 1578724 1691490 1973405 2368086 3382980 3946810 4736172 5920215 7893620 11840430 23680860