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23456693 = 132138797
BaseRepresentation
bin101100101111…
…0101110110101
31122010201112102
41121132232311
522001103233
62154431445
7403243601
oct131365665
948121472
1023456693
11122713a7
127a32585
134b23900
143188501
1520d51e8
hex165ebb5

23456693 has 6 divisors (see below), whose sum is σ = 25400034. Its totient is φ = 21652176.

The previous prime is 23456683. The next prime is 23456717. The reversal of 23456693 is 39665432.

It can be written as a sum of positive squares in 3 ways, for example, as 2093809 + 21362884 = 1447^2 + 4622^2 .

It is not a de Polignac number, because 23456693 - 28 = 23456437 is a prime.

It is a super-3 number, since 3×234566933 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23456603) 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, 69230 + ... + 69567.

It is an arithmetic number, because the mean of its divisors is an integer number (4233339).

Almost surely, 223456693 is an apocalyptic number.

It is an amenable number.

23456693 is a deficient number, since it is larger than the sum of its proper divisors (1943341).

23456693 is a wasteful number, since it uses less digits than its factorization.

23456693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138823 (or 138810 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The square root of 23456693 is about 4843.2110216260. The cubic root of 23456693 is about 286.2566566595.

The spelling of 23456693 in words is "twenty-three million, four hundred fifty-six thousand, six hundred ninety-three".

Divisors: 1 13 169 138797 1804361 23456693