Search a number
-
+
23465409 = 3112127509
BaseRepresentation
bin101100110000…
…0110111000001
31122011011111020
41121200313001
522001343114
62154540053
7403311162
oct131406701
948134436
1023465409
1112277a00
127a37629
134b27876
14318b769
1520d7aa9
hex1660dc1

23465409 has 24 divisors (see below), whose sum is σ = 34728960. Its totient is φ = 14081760.

The previous prime is 23465371. The next prime is 23465413. The reversal of 23465409 is 90456432.

It is not a de Polignac number, because 23465409 - 28 = 23465153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 23465409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23465459) 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, 45847 + ... + 46355.

It is an arithmetic number, because the mean of its divisors is an integer number (1447040).

Almost surely, 223465409 is an apocalyptic number.

It is an amenable number.

23465409 is a deficient number, since it is larger than the sum of its proper divisors (11263551).

23465409 is a wasteful number, since it uses less digits than its factorization.

23465409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 23465409 is about 4844.1107543078. The cubic root of 23465409 is about 286.2921078639.

The spelling of 23465409 in words is "twenty-three million, four hundred sixty-five thousand, four hundred nine".

Divisors: 1 3 11 33 121 127 363 381 509 1397 1527 4191 5599 15367 16797 46101 61589 64643 184767 193929 711073 2133219 7821803 23465409