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23032401 = 372156683
BaseRepresentation
bin101011111011…
…1001001010001
31121100011111220
41113313021101
521344014101
62141355253
7366525600
oct127671121
947304456
1023032401
1112001647
127868b29
134a05752
1430b7a37
15204e636
hex15f7251

23032401 has 12 divisors (see below), whose sum is σ = 35723952. Its totient is φ = 13161288.

The previous prime is 23032393. The next prime is 23032403. The reversal of 23032401 is 10423032.

It is not a de Polignac number, because 23032401 - 23 = 23032393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23032403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78195 + ... + 78488.

It is an arithmetic number, because the mean of its divisors is an integer number (2976996).

Almost surely, 223032401 is an apocalyptic number.

23032401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23032401 is a deficient number, since it is larger than the sum of its proper divisors (12691551).

23032401 is a wasteful number, since it uses less digits than its factorization.

23032401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156700 (or 156693 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23032401 is about 4799.2083722214. The cubic root of 23032401 is about 284.5201775487.

Adding to 23032401 its reverse (10423032), we get a palindrome (33455433).

The spelling of 23032401 in words is "twenty-three million, thirty-two thousand, four hundred one".

Divisors: 1 3 7 21 49 147 156683 470049 1096781 3290343 7677467 23032401