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23122464 = 253240859
BaseRepresentation
bin101100000110…
…1001000100000
31121111202001120
41120031020200
521404404324
62143332240
7400352301
oct130151040
947452046
1023122464
1112063282
1278b1080
134a37741
1430dc7a8
15206b179
hex160d220

23122464 has 24 divisors (see below), whose sum is σ = 60696720. Its totient is φ = 7707456.

The previous prime is 23122427. The next prime is 23122493. The reversal of 23122464 is 46422132.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120334 + ... + 120525.

It is an arithmetic number, because the mean of its divisors is an integer number (2529030).

Almost surely, 223122464 is an apocalyptic number.

23122464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23122464 is an abundant number, since it is smaller than the sum of its proper divisors (37574256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23122464 is a wasteful number, since it uses less digits than its factorization.

23122464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240872 (or 240864 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 23122464 is about 4808.5823274641. The cubic root of 23122464 is about 284.8905458427.

Adding to 23122464 its reverse (46422132), we get a palindrome (69544596).

The spelling of 23122464 in words is "twenty-three million, one hundred twenty-two thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 240859 481718 722577 963436 1445154 1926872 2890308 3853744 5780616 7707488 11561232 23122464