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23133006 = 23313311063
BaseRepresentation
bin101100000111…
…1101101001110
31121112021112000
41120033231032
521410224011
62143453130
7400425111
oct130175516
947467460
1023133006
1112070196
1278b71a6
134a3c490
143102578
15206e356
hex160fb4e

23133006 has 64 divisors (see below), whose sum is σ = 57200640. Its totient is φ = 6881760.

The previous prime is 23132999. The next prime is 23133031. The reversal of 23133006 is 60033132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 23133006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21231 + ... + 22293.

It is an arithmetic number, because the mean of its divisors is an integer number (893760).

Almost surely, 223133006 is an apocalyptic number.

23133006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23133006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28600320).

23133006 is an abundant number, since it is smaller than the sum of its proper divisors (34067634).

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

23133006 is a wasteful number, since it uses less digits than its factorization.

23133006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 23133006 is about 4809.6783676250. The cubic root of 23133006 is about 284.9338350560.

Adding to 23133006 its reverse (60033132), we get a palindrome (83166138).

The spelling of 23133006 in words is "twenty-three million, one hundred thirty-three thousand, six".

Divisors: 1 2 3 6 9 13 18 26 27 31 39 54 62 78 93 117 186 234 279 351 403 558 702 806 837 1063 1209 1674 2126 2418 3189 3627 6378 7254 9567 10881 13819 19134 21762 27638 28701 32953 41457 57402 65906 82914 98859 124371 197718 248742 296577 373113 428389 593154 746226 856778 889731 1285167 1779462 2570334 3855501 7711002 11566503 23133006