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23117052 = 22371491847
BaseRepresentation
bin101100000101…
…1110011111100
31121111110122010
41120023303330
521404221202
62143251220
7400330440
oct130136374
947443563
1023117052
111205a202
1278a9b10
134a3513a
1430da820
15206976c
hex160bcfc

23117052 has 48 divisors (see below), whose sum is σ = 62092800. Its totient is φ = 6556992.

The previous prime is 23117051. The next prime is 23117099. The reversal of 23117052 is 25071132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23117051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11593 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (1293600).

Almost surely, 223117052 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 23117052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31046400).

23117052 is an abundant number, since it is smaller than the sum of its proper divisors (38975748).

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

23117052 is a wasteful number, since it uses less digits than its factorization.

23117052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 2008 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 23117052 is about 4808.0195507090. The cubic root of 23117052 is about 284.8683171284.

Adding to 23117052 its reverse (25071132), we get a palindrome (48188184).

The spelling of 23117052 in words is "twenty-three million, one hundred seventeen thousand, fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 149 298 447 596 894 1043 1788 1847 2086 3129 3694 4172 5541 6258 7388 11082 12516 12929 22164 25858 38787 51716 77574 155148 275203 550406 825609 1100812 1651218 1926421 3302436 3852842 5779263 7705684 11558526 23117052