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23231401 = 179191487
BaseRepresentation
bin101100010011…
…1101110101001
31121201021111021
41120213232221
521421401101
62145532441
7401315014
oct130475651
947637437
1023231401
1112128106
127944121
134a751bb
14312a37b
15208d5a1
hex1627ba9

23231401 has 8 divisors (see below), whose sum is σ = 24641280. Its totient is φ = 21826368.

The previous prime is 23231399. The next prime is 23231473. The reversal of 23231401 is 10413232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23231401 - 21 = 23231399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23231491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14880 + ... + 16366.

It is an arithmetic number, because the mean of its divisors is an integer number (3080160).

Almost surely, 223231401 is an apocalyptic number.

It is an amenable number.

23231401 is a deficient number, since it is larger than the sum of its proper divisors (1409879).

23231401 is a wasteful number, since it uses less digits than its factorization.

23231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23231401 is about 4819.8963681805. The cubic root of 23231401 is about 285.3372472253.

Adding to 23231401 its reverse (10413232), we get a palindrome (33644633).

It can be divided in two parts, 23231 and 401, that added together give a palindrome (23632).

The spelling of 23231401 in words is "twenty-three million, two hundred thirty-one thousand, four hundred one".

Divisors: 1 17 919 1487 15623 25279 1366553 23231401