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23056480 = 255144103
BaseRepresentation
bin101011111110…
…1000001100000
31121101101112201
41113331001200
521400301410
62142102544
7366656026
oct127750140
947341481
1023056480
1112018747
12787aa54
134a136b5
1430c2716
15205683a
hex15fd060

23056480 has 24 divisors (see below), whose sum is σ = 54471312. Its totient is φ = 9222528.

The previous prime is 23056459. The next prime is 23056483. The reversal of 23056480 is 8465032.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23056483) 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, 71892 + ... + 72211.

It is an arithmetic number, because the mean of its divisors is an integer number (2269638).

Almost surely, 223056480 is an apocalyptic number.

23056480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23056480 is an abundant number, since it is smaller than the sum of its proper divisors (31414832).

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

23056480 is a wasteful number, since it uses less digits than its factorization.

23056480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144118 (or 144110 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 23056480 is about 4801.7163598030. The cubic root of 23056480 is about 284.6192926361.

The spelling of 23056480 in words is "twenty-three million, fifty-six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 144103 288206 576412 720515 1152824 1441030 2305648 2882060 4611296 5764120 11528240 23056480