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23826972 = 22313231379
BaseRepresentation
bin101101011100…
…1001000011100
31122211112110110
41122321020130
522044430342
62210410020
7406345251
oct132711034
948745413
1023826972
11124a4614
127b90910
134c23300
143243428
152159c9c
hex16b921c

23826972 has 72 divisors (see below), whose sum is σ = 62307840. Its totient is φ = 7076160.

The previous prime is 23826967. The next prime is 23826997. The reversal of 23826972 is 27962832.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 23826972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62679 + ... + 63057.

Almost surely, 223826972 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 23826972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31153920).

23826972 is an abundant number, since it is smaller than the sum of its proper divisors (38480868).

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

23826972 is a wasteful number, since it uses less digits than its factorization.

23826972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 428 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 23826972 is about 4881.2879447949. The cubic root of 23826972 is about 287.7550482797.

The spelling of 23826972 in words is "twenty-three million, eight hundred twenty-six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 31 39 52 62 78 93 124 156 169 186 338 372 379 403 507 676 758 806 1014 1137 1209 1516 1612 2028 2274 2418 4548 4836 4927 5239 9854 10478 11749 14781 15717 19708 20956 23498 29562 31434 35247 46996 59124 62868 64051 70494 128102 140988 152737 192153 256204 305474 384306 458211 610948 768612 916422 1832844 1985581 3971162 5956743 7942324 11913486 23826972