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23205672 = 23327411123
BaseRepresentation
bin101100010000…
…1011100101000
31121122222012100
41120201130220
521420040142
62145213400
7401150010
oct130413450
947588170
1023205672
111210a846
127931260
134a66589
143120c40
152085b4c
hex1621728

23205672 has 96 divisors (see below), whose sum is σ = 73644480. Its totient is φ = 6462720.

The previous prime is 23205671. The next prime is 23205709. The reversal of 23205672 is 27650232.

It is not an unprimeable number, because it can be changed into a prime (23205671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20103 + ... + 21225.

It is an arithmetic number, because the mean of its divisors is an integer number (767130).

Almost surely, 223205672 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 23205672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36822240).

23205672 is an abundant number, since it is smaller than the sum of its proper divisors (50438808).

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

23205672 is a wasteful number, since it uses less digits than its factorization.

23205672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 23205672 is about 4817.2265879861. The cubic root of 23205672 is about 285.2318703987.

The spelling of 23205672 in words is "twenty-three million, two hundred five thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 41 42 56 63 72 82 84 123 126 164 168 246 252 287 328 369 492 504 574 738 861 984 1123 1148 1476 1722 2246 2296 2583 2952 3369 3444 4492 5166 6738 6888 7861 8984 10107 10332 13476 15722 20214 20664 23583 26952 31444 40428 46043 47166 62888 70749 80856 92086 94332 138129 141498 184172 188664 276258 282996 322301 368344 414387 552516 565992 644602 828774 966903 1105032 1289204 1657548 1933806 2578408 2900709 3315096 3867612 5801418 7735224 11602836 23205672