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23113100 = 2252231131
BaseRepresentation
bin101100000101…
…0110110001100
31121111021012202
41120022312030
521404104400
62143221032
7400313063
oct130126614
947437182
1023113100
111205723a
1278a7778
134a333ba
1430d91da
1520684d5
hex160ad8c

23113100 has 18 divisors (see below), whose sum is σ = 50155644. Its totient is φ = 9245200.

The previous prime is 23113099. The next prime is 23113121. The reversal of 23113100 is 131132.

It is a super-2 number, since 2×231131002 = 1068430783220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115466 + ... + 115665.

Almost surely, 223113100 is an apocalyptic number.

23113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23113100 is an abundant number, since it is smaller than the sum of its proper divisors (27042544).

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

23113100 is a wasteful number, since it uses less digits than its factorization.

23113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231145 (or 231138 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 23113100 is about 4807.6085531166. The cubic root of 23113100 is about 284.8520828821.

Adding to 23113100 its reverse (131132), we get a palindrome (23244232).

It can be divided in two parts, 231 and 13100, that added together give a palindrome (13331).

The spelling of 23113100 in words is "twenty-three million, one hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 231131 462262 924524 1155655 2311310 4622620 5778275 11556550 23113100