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23404303 = 132791753
BaseRepresentation
bin101100101000…
…1111100001111
31122001001200001
41121101330033
521442414203
62153345131
7402635056
oct131217417
948031601
1023404303
1112235aaa
127a081a7
134b05b00
14317339d
1520c491d
hex1651f0f

23404303 has 12 divisors (see below), whose sum is σ = 25678560. Its totient is φ = 21318336.

The previous prime is 23404279. The next prime is 23404307. The reversal of 23404303 is 30340432.

It is a de Polignac number, because none of the positive numbers 2k-23404303 is a prime.

It is a super-2 number, since 2×234043032 = 1095522797831618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404307) 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, 12475 + ... + 14227.

It is an arithmetic number, because the mean of its divisors is an integer number (2139880).

Almost surely, 223404303 is an apocalyptic number.

23404303 is a deficient number, since it is larger than the sum of its proper divisors (2274257).

23404303 is a wasteful number, since it uses less digits than its factorization.

23404303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 23404303 is about 4837.7993964198. The cubic root of 23404303 is about 286.0433818491.

Adding to 23404303 its reverse (30340432), we get a palindrome (53744735).

The spelling of 23404303 in words is "twenty-three million, four hundred four thousand, three hundred three".

Divisors: 1 13 79 169 1027 1753 13351 22789 138487 296257 1800331 23404303