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23685066 = 2321315837
BaseRepresentation
bin101101001011…
…0011111001010
31122120022210200
41122112133022
522030410231
62203353030
7405214446
oct132263712
948508720
1023685066
1112407a39
127b22776
134ba3842
143207826
15212cbe6
hex16967ca

23685066 has 12 divisors (see below), whose sum is σ = 51317682. Its totient is φ = 7895016.

The previous prime is 23685061. The next prime is 23685071. The reversal of 23685066 is 66058632.

It is an interprime number because it is at equal distance from previous prime (23685061) and next prime (23685071).

It can be written as a sum of positive squares in only one way, i.e., 16281225 + 7403841 = 4035^2 + 2721^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23685066.

It is not an unprimeable number, because it can be changed into a prime (23685061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 657901 + ... + 657936.

Almost surely, 223685066 is an apocalyptic number.

23685066 is an abundant number, since it is smaller than the sum of its proper divisors (27632616).

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

23685066 is a wasteful number, since it uses less digits than its factorization.

23685066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315845 (or 1315842 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 23685066 is about 4866.7305246952. The cubic root of 23685066 is about 287.1826507134.

The spelling of 23685066 in words is "twenty-three million, six hundred eighty-five thousand, sixty-six".

Divisors: 1 2 3 6 9 18 1315837 2631674 3947511 7895022 11842533 23685066