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23490612 = 22321961563
BaseRepresentation
bin101100110011…
…1000000110100
31122012110001200
41121213000310
522003144422
62155252500
7403444515
oct131470064
948173050
1023490612
1112294932
127a4a130
134b36192
143196a0c
1520e02ac
hex1667034

23490612 has 72 divisors (see below), whose sum is σ = 63641760. Its totient is φ = 7283520.

The previous prime is 23490611. The next prime is 23490619. The reversal of 23490612 is 21609432.

23490612 is a `hidden beast` number, since 2 + 3 + 49 + 0 + 612 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23490611) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 41443 + ... + 42005.

Almost surely, 223490612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23490612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31820880).

23490612 is an abundant number, since it is smaller than the sum of its proper divisors (40151148).

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

23490612 is a wasteful number, since it uses less digits than its factorization.

23490612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 23490612 is about 4846.7114624248. The cubic root of 23490612 is about 286.3945684446.

The spelling of 23490612 in words is "twenty-three million, four hundred ninety thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 61 76 114 122 171 183 228 244 342 366 549 563 684 732 1098 1126 1159 1689 2196 2252 2318 3378 3477 4636 5067 6756 6954 10134 10431 10697 13908 20268 20862 21394 32091 34343 41724 42788 64182 68686 96273 103029 128364 137372 192546 206058 309087 385092 412116 618174 652517 1236348 1305034 1957551 2610068 3915102 5872653 7830204 11745306 23490612