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23131101 = 371764793
BaseRepresentation
bin101100000111…
…1001111011101
31121112011220110
41120033033131
521410143401
62143440233
7400416420
oct130171735
947464813
1023131101
1112069814
1278b6079
134a3b656
1431019b7
15206d9d6
hex160f3dd

23131101 has 16 divisors (see below), whose sum is σ = 37321344. Its totient is φ = 12440064.

The previous prime is 23131099. The next prime is 23131103. The reversal of 23131101 is 10113132.

It is an interprime number because it is at equal distance from previous prime (23131099) and next prime (23131103).

It is not a de Polignac number, because 23131101 - 21 = 23131099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131103) 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, 32040 + ... + 32753.

It is an arithmetic number, because the mean of its divisors is an integer number (2332584).

Almost surely, 223131101 is an apocalyptic number.

23131101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23131101 is a deficient number, since it is larger than the sum of its proper divisors (14190243).

23131101 is a wasteful number, since it uses less digits than its factorization.

23131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64820.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 23131101 is about 4809.4803253574. The cubic root of 23131101 is about 284.9260134200.

Adding to 23131101 its reverse (10113132), we get a palindrome (33244233).

It can be divided in two parts, 23131 and 101, that added together give a palindrome (23232).

The spelling of 23131101 in words is "twenty-three million, one hundred thirty-one thousand, one hundred one".

Divisors: 1 3 7 17 21 51 119 357 64793 194379 453551 1101481 1360653 3304443 7710367 23131101