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23161434 = 2343107839
BaseRepresentation
bin101100001011…
…0101001011010
31121120201111220
41120112221122
521412131214
62144232510
7400604022
oct130265132
947521456
1023161434
111208a58a
12790b736
134a4c3ba
14310ca82
1520779a9
hex1616a5a

23161434 has 32 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 7461552.

The previous prime is 23161427. The next prime is 23161441. The reversal of 23161434 is 43416132.

It is an interprime number because it is at equal distance from previous prime (23161427) and next prime (23161441).

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, 27187 + ... + 28025.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 223161434 is an apocalyptic number.

23161434 is an abundant number, since it is smaller than the sum of its proper divisors (24738726).

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

23161434 is a wasteful number, since it uses less digits than its factorization.

23161434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994.

The product of its digits is 1728, while the sum is 24.

The square root of 23161434 is about 4812.6327514158. The cubic root of 23161434 is about 285.0505050537.

Adding to 23161434 its reverse (43416132), we get a palindrome (66577566).

The spelling of 23161434 in words is "twenty-three million, one hundred sixty-one thousand, four hundred thirty-four".

Divisors: 1 2 3 6 43 86 107 129 214 258 321 642 839 1678 2517 4601 5034 9202 13803 27606 36077 72154 89773 108231 179546 216462 269319 538638 3860239 7720478 11580717 23161434