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23134231 = 137168863
BaseRepresentation
bin101100001000…
…0000000010111
31121112100012101
41120100000113
521410243411
62143502531
7400431511
oct130200027
947470171
1023134231
11120710aa
1278b7a47
134a3cbc3
143102bb1
15206e8c1
hex1610017

23134231 has 4 divisors (see below), whose sum is σ = 23303232. Its totient is φ = 22965232.

The previous prime is 23134217. The next prime is 23134249. The reversal of 23134231 is 13243132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23134231 - 27 = 23134103 is a prime.

It is a super-2 number, since 2×231342312 = 1070385287922722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23134199 and 23134208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23134201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84295 + ... + 84568.

It is an arithmetic number, because the mean of its divisors is an integer number (5825808).

Almost surely, 223134231 is an apocalyptic number.

23134231 is a deficient number, since it is larger than the sum of its proper divisors (169001).

23134231 is a wasteful number, since it uses less digits than its factorization.

23134231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169000.

The product of its digits is 432, while the sum is 19.

The square root of 23134231 is about 4809.8057133319. The cubic root of 23134231 is about 284.9388644901.

Adding to 23134231 its reverse (13243132), we get a palindrome (36377363).

The spelling of 23134231 in words is "twenty-three million, one hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 137 168863 23134231