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23666130 = 2325262957
BaseRepresentation
bin101101001000…
…1110111010010
31122112100211100
41122101313102
522024304010
62203125230
7405105315
oct132216722
948470740
1023666130
11123a4794
127b13816
134b98037
14320097c
1521272c0
hex1691dd2

23666130 has 24 divisors (see below), whose sum is σ = 61532172. Its totient is φ = 6310944.

The previous prime is 23666129. The next prime is 23666131. The reversal of 23666130 is 3166632.

It is an interprime number because it is at equal distance from previous prime (23666129) and next prime (23666131).

It can be written as a sum of positive squares in 2 ways, for example, as 19368801 + 4297329 = 4401^2 + 2073^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23666094 and 23666103.

It is not an unprimeable number, because it can be changed into a prime (23666131) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 131389 + ... + 131568.

Almost surely, 223666130 is an apocalyptic number.

23666130 is an abundant number, since it is smaller than the sum of its proper divisors (37866042).

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

23666130 is a wasteful number, since it uses less digits than its factorization.

23666130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262970 (or 262967 counting only the distinct ones).

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

The square root of 23666130 is about 4864.7846817716. The cubic root of 23666130 is about 287.1060969819.

It can be divided in two parts, 236 and 66130, that added together give a palindrome (66366).

The spelling of 23666130 in words is "twenty-three million, six hundred sixty-six thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 262957 525914 788871 1314785 1577742 2366613 2629570 3944355 4733226 7888710 11833065 23666130