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23091814 = 217679171
BaseRepresentation
bin101100000010…
…1101001100110
31121110012000101
41120011221212
521402414224
62142534314
7400164034
oct130055146
947405011
1023091814
1112042249
12789739a
134a267c5
1430d1554
152062044
hex1605a66

23091814 has 8 divisors (see below), whose sum is σ = 36675288. Its totient is φ = 10866720.

The previous prime is 23091791. The next prime is 23091857. The reversal of 23091814 is 41819032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 339552 + ... + 339619.

It is an arithmetic number, because the mean of its divisors is an integer number (4584411).

Almost surely, 223091814 is an apocalyptic number.

23091814 is a deficient number, since it is larger than the sum of its proper divisors (13583474).

23091814 is a wasteful number, since it uses less digits than its factorization.

23091814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679190.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 23091814 is about 4805.3942606200. The cubic root of 23091814 is about 284.7646112211.

The spelling of 23091814 in words is "twenty-three million, ninety-one thousand, eight hundred fourteen".

Divisors: 1 2 17 34 679171 1358342 11545907 23091814