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23680528 = 243147743
BaseRepresentation
bin101101001010…
…1011000010000
31122120002120121
41122111120100
522030234103
62203320024
7405165304
oct132253020
948502517
1023680528
1112404593
127b20014
134ba1761
143205d04
15212b6bd
hex1695610

23680528 has 20 divisors (see below), whose sum is σ = 47362048. Its totient is φ = 11458080.

The previous prime is 23680519. The next prime is 23680537. The reversal of 23680528 is 82508632.

It is an interprime number because it is at equal distance from previous prime (23680519) and next prime (23680537).

23680528 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 23680493 and 23680502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23376 + ... + 24367.

Almost surely, 223680528 is an apocalyptic number.

It is an amenable number.

23680528 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23680528 is a wasteful number, since it uses less digits than its factorization.

23680528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47782 (or 47776 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 23680528 is about 4866.2642756020. The cubic root of 23680528 is about 287.1643083803.

The spelling of 23680528 in words is "twenty-three million, six hundred eighty thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 31 62 124 248 496 47743 95486 190972 381944 763888 1480033 2960066 5920132 11840264 23680528