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23454029 = 31374933
BaseRepresentation
bin101100101111…
…0000101001101
31122010120212202
41121132011031
522001012104
62154411245
7403233044
oct131360515
948116782
1023454029
111226a3a5
127a30b25
134b22631
14318755b
1520d451e
hex165e14d

23454029 has 4 divisors (see below), whose sum is σ = 23529276. Its totient is φ = 23378784.

The previous prime is 23454023. The next prime is 23454031. The reversal of 23454029 is 92045432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3222025 + 20232004 = 1795^2 + 4498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23454029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23453992 and 23454010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23454023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37154 + ... + 37779.

It is an arithmetic number, because the mean of its divisors is an integer number (5882319).

Almost surely, 223454029 is an apocalyptic number.

It is an amenable number.

23454029 is a deficient number, since it is larger than the sum of its proper divisors (75247).

23454029 is an equidigital number, since it uses as much as digits as its factorization.

23454029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75246.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 23454029 is about 4842.9359896658. The cubic root of 23454029 is about 286.2458194313.

The spelling of 23454029 in words is "twenty-three million, four hundred fifty-four thousand, twenty-nine".

Divisors: 1 313 74933 23454029