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23498982 = 23213233431
BaseRepresentation
bin101100110100…
…1000011100110
31122012212112200
41121221003212
522003431412
62155355330
7403511103
oct131510346
948185480
1023498982
11122a0151
127a52b46
134b39c30
143199aaa
1520e29dc
hex16690e6

23498982 has 48 divisors (see below), whose sum is σ = 55194048. Its totient is φ = 7182720.

The previous prime is 23498971. The next prime is 23498987. The reversal of 23498982 is 28989432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23498987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54307 + ... + 54737.

It is an arithmetic number, because the mean of its divisors is an integer number (1149876).

Almost surely, 223498982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23498982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27597024).

23498982 is an abundant number, since it is smaller than the sum of its proper divisors (31695066).

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

23498982 is a wasteful number, since it uses less digits than its factorization.

23498982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 682 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 23498982 is about 4847.5748575963. The cubic root of 23498982 is about 286.4285797322.

The spelling of 23498982 in words is "twenty-three million, four hundred ninety-eight thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 233 234 431 466 699 862 1293 1398 2097 2586 3029 3879 4194 5603 6058 7758 9087 11206 16809 18174 27261 33618 50427 54522 100423 100854 200846 301269 602538 903807 1305499 1807614 2610998 3916497 7832994 11749491 23498982