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23490630 = 23252111237
BaseRepresentation
bin101100110011…
…1000001000110
31122012110002100
41121213001012
522003200010
62155252530
7403444542
oct131470106
948173070
1023490630
1112294949
127a4a146
134b361a7
143196a22
1520e02c0
hex1667046

23490630 has 48 divisors (see below), whose sum is σ = 61414704. Its totient is φ = 6229440.

The previous prime is 23490619. The next prime is 23490637. The reversal of 23490630 is 3609432.

23490630 is a `hidden beast` number, since 23 + 4 + 9 + 0 + 630 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23490594 and 23490603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23490637) 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, 18372 + ... + 19608.

It is an arithmetic number, because the mean of its divisors is an integer number (1279473).

Almost surely, 223490630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23490630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30707352).

23490630 is an abundant number, since it is smaller than the sum of its proper divisors (37924074).

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

23490630 is a wasteful number, since it uses less digits than its factorization.

23490630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 23490630 is about 4846.7133193536. The cubic root of 23490630 is about 286.3946415958.

The spelling of 23490630 in words is "twenty-three million, four hundred ninety thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 211 422 633 1055 1237 1266 1899 2110 2474 3165 3711 3798 6185 6330 7422 9495 11133 12370 18555 18990 22266 37110 55665 111330 261007 522014 783021 1305035 1566042 2349063 2610070 3915105 4698126 7830210 11745315 23490630