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23728055 = 5131919213
BaseRepresentation
bin101101010000…
…0111110110111
31122122111202212
41122200332313
522033244210
62204324035
7405454001
oct132407667
948574685
1023728055
111243726a
127b4361b
134bba290
143219371
15213a805
hex16a0fb7

23728055 has 16 divisors (see below), whose sum is σ = 32279520. Its totient is φ = 16599168.

The previous prime is 23728049. The next prime is 23728057. The reversal of 23728055 is 55082732.

It is a cyclic number.

It is not a de Polignac number, because 23728055 - 28 = 23727799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8372 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (2017470).

Almost surely, 223728055 is an apocalyptic number.

23728055 is a deficient number, since it is larger than the sum of its proper divisors (8551465).

23728055 is a wasteful number, since it uses less digits than its factorization.

23728055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19250.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 23728055 is about 4871.1451425717. The cubic root of 23728055 is about 287.3562936501.

The spelling of 23728055 in words is "twenty-three million, seven hundred twenty-eight thousand, fifty-five".

Divisors: 1 5 13 19 65 95 247 1235 19213 96065 249769 365047 1248845 1825235 4745611 23728055