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23748133 = 171396949
BaseRepresentation
bin101101010010…
…1111000100101
31122200112022111
41122211320211
522034420013
62205001021
7405566353
oct132457045
948615274
1023748133
1112450362
127b53171
134bc6466
1432227d3
15214173d
hex16a5e25

23748133 has 4 divisors (see below), whose sum is σ = 25145100. Its totient is φ = 22351168.

The previous prime is 23748107. The next prime is 23748161. The reversal of 23748133 is 33184732.

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 15233409 + 8514724 = 3903^2 + 2918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23748133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23748095 and 23748104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23748103) 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, 698458 + ... + 698491.

It is an arithmetic number, because the mean of its divisors is an integer number (6286275).

Almost surely, 223748133 is an apocalyptic number.

It is an amenable number.

23748133 is a deficient number, since it is larger than the sum of its proper divisors (1396967).

23748133 is a wasteful number, since it uses less digits than its factorization.

23748133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396966.

The product of its digits is 12096, while the sum is 31.

The square root of 23748133 is about 4873.2056184815. The cubic root of 23748133 is about 287.4373216861.

The spelling of 23748133 in words is "twenty-three million, seven hundred forty-eight thousand, one hundred thirty-three".

Divisors: 1 17 1396949 23748133