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23680458 = 233438527
BaseRepresentation
bin101101001010…
…1010111001010
31122120002111000
41122111113022
522030233313
62203315430
7405165144
oct132252712
948502430
1023680458
111240452a
127b1bb76
134ba1709
143205c94
15212b673
hex16955ca

23680458 has 16 divisors (see below), whose sum is σ = 52623360. Its totient is φ = 7893468.

The previous prime is 23680429. The next prime is 23680469. The reversal of 23680458 is 85408632.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 219210 + ... + 219317.

It is an arithmetic number, because the mean of its divisors is an integer number (3288960).

Almost surely, 223680458 is an apocalyptic number.

23680458 is an abundant number, since it is smaller than the sum of its proper divisors (28942902).

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

23680458 is a wasteful number, since it uses less digits than its factorization.

23680458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438538 (or 438532 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 23680458 is about 4866.2570832211. The cubic root of 23680458 is about 287.1640254260.

The spelling of 23680458 in words is "twenty-three million, six hundred eighty thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 9 18 27 54 438527 877054 1315581 2631162 3946743 7893486 11840229 23680458