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23427953 = 26878719
BaseRepresentation
bin101100101011…
…1101101110001
31122002021002222
41121113231301
521444143303
62154050425
7403064033
oct131275561
948067088
1023427953
111225184a
127a19a15
134b137c3
14317bc53
1520cb938
hex1657b71

23427953 has 4 divisors (see below), whose sum is σ = 23439360. Its totient is φ = 23416548.

The previous prime is 23427947. The next prime is 23427967. The reversal of 23427953 is 35972432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23427953 - 220 = 22379377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23427913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673 + ... + 7046.

It is an arithmetic number, because the mean of its divisors is an integer number (5859840).

Almost surely, 223427953 is an apocalyptic number.

It is an amenable number.

23427953 is a deficient number, since it is larger than the sum of its proper divisors (11407).

23427953 is an equidigital number, since it uses as much as digits as its factorization.

23427953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11406.

The product of its digits is 45360, while the sum is 35.

The square root of 23427953 is about 4840.2430724087. The cubic root of 23427953 is about 286.1396981634.

The spelling of 23427953 in words is "twenty-three million, four hundred twenty-seven thousand, nine hundred fifty-three".

Divisors: 1 2687 8719 23427953