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23136260 = 2257592801
BaseRepresentation
bin101100001000…
…0100000000100
31121112102222112
41120100200010
521410330020
62143520152
7400440440
oct130204004
947472875
1023136260
1112072684
1278b9058
134a40ac4
143103820
1520702c5
hex1610804

23136260 has 48 divisors (see below), whose sum is σ = 56488320. Its totient is φ = 7795200.

The previous prime is 23136247. The next prime is 23136299. The reversal of 23136260 is 6263132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6860 + ... + 9660.

It is an arithmetic number, because the mean of its divisors is an integer number (1176840).

Almost surely, 223136260 is an apocalyptic number.

23136260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23136260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28244160).

23136260 is an abundant number, since it is smaller than the sum of its proper divisors (33352060).

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

23136260 is a wasteful number, since it uses less digits than its factorization.

23136260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876 (or 2874 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23136260 is about 4810.0166319879. The cubic root of 23136260 is about 284.9471944846.

Adding to 23136260 its reverse (6263132), we get a palindrome (29399392).

The spelling of 23136260 in words is "twenty-three million, one hundred thirty-six thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 59 70 118 140 236 295 413 590 826 1180 1652 2065 2801 4130 5602 8260 11204 14005 19607 28010 39214 56020 78428 98035 165259 196070 330518 392140 661036 826295 1156813 1652590 2313626 3305180 4627252 5784065 11568130 23136260