Search a number
-
+
23680664 = 237422869
BaseRepresentation
bin101101001010…
…1011010011000
31122120002202122
41122111122120
522030240124
62203320412
7405165560
oct132253230
948502678
1023680664
11124046a7
127b20108
134ba1837
143205da0
15212b75e
hex1695698

23680664 has 16 divisors (see below), whose sum is σ = 50744400. Its totient is φ = 10148832.

The previous prime is 23680649. The next prime is 23680667. The reversal of 23680664 is 46608632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23680667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211379 + ... + 211490.

It is an arithmetic number, because the mean of its divisors is an integer number (3171525).

Almost surely, 223680664 is an apocalyptic number.

It is an amenable number.

23680664 is an abundant number, since it is smaller than the sum of its proper divisors (27063736).

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

23680664 is a wasteful number, since it uses less digits than its factorization.

23680664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422882 (or 422878 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 23680664 is about 4866.2782493400. The cubic root of 23680664 is about 287.1648581185.

The spelling of 23680664 in words is "twenty-three million, six hundred eighty thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 422869 845738 1691476 2960083 3382952 5920166 11840332 23680664