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23109454 = 238330169
BaseRepresentation
bin101100000100…
…1111101001110
31121111002012201
41120021331032
521404000304
62143152114
7400266334
oct130117516
947432181
1023109454
1112054525
1278a563a
134a31844
1430d7b54
1520673a4
hex1609f4e

23109454 has 8 divisors (see below), whose sum is σ = 34755840. Its totient is φ = 11524176.

The previous prime is 23109421. The next prime is 23109481. The reversal of 23109454 is 45490132.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14319 + ... + 15850.

It is an arithmetic number, because the mean of its divisors is an integer number (4344480).

Almost surely, 223109454 is an apocalyptic number.

23109454 is a deficient number, since it is larger than the sum of its proper divisors (11646386).

23109454 is a wasteful number, since it uses less digits than its factorization.

23109454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30554.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23109454 is about 4807.2293475556. The cubic root of 23109454 is about 284.8371039984.

Adding to 23109454 its reverse (45490132), we get a palindrome (68599586).

The spelling of 23109454 in words is "twenty-three million, one hundred nine thousand, four hundred fifty-four".

Divisors: 1 2 383 766 30169 60338 11554727 23109454