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23100144 = 2431728309
BaseRepresentation
bin101100000011…
…1101011110000
31121110121102220
41120013223300
521403201034
62143041040
7400230234
oct130075360
947417386
1023100144
1112048531
1278a0180
134a2a532
1430d45c4
152064749
hex1607af0

23100144 has 40 divisors (see below), whose sum is σ = 63187920. Its totient is φ = 7246848.

The previous prime is 23100109. The next prime is 23100149. The reversal of 23100144 is 44100132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23100149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13339 + ... + 14970.

It is an arithmetic number, because the mean of its divisors is an integer number (1579698).

Almost surely, 223100144 is an apocalyptic number.

23100144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23100144 is an abundant number, since it is smaller than the sum of its proper divisors (40087776).

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

23100144 is a wasteful number, since it uses less digits than its factorization.

23100144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28337 (or 28331 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 23100144 is about 4806.2609167626. The cubic root of 23100144 is about 284.7988485204.

Adding to 23100144 its reverse (44100132), we get a palindrome (67200276).

The spelling of 23100144 in words is "twenty-three million, one hundred thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 28309 56618 84927 113236 169854 226472 339708 452944 481253 679416 962506 1358832 1443759 1925012 2887518 3850024 5775036 7700048 11550072 23100144