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23452723 = 72478627
BaseRepresentation
bin101100101110…
…1110000110011
31122010112002101
41121131300303
522000441343
62154401231
7403226200
oct131356063
948115071
1023452723
1112269418
127a30217
134b21b68
143186ca7
1520d3e4d
hex165dc33

23452723 has 6 divisors (see below), whose sum is σ = 27281796. Its totient is φ = 20102292.

The previous prime is 23452721. The next prime is 23452733. The reversal of 23452723 is 32725432.

It is not a de Polignac number, because 23452723 - 21 = 23452721 is a prime.

It is a super-2 number, since 2×234527232 = 1100060432229458, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23452691 and 23452700.

It is not an unprimeable number, because it can be changed into a prime (23452721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239265 + ... + 239362.

It is an arithmetic number, because the mean of its divisors is an integer number (4546966).

Almost surely, 223452723 is an apocalyptic number.

23452723 is a deficient number, since it is larger than the sum of its proper divisors (3829073).

23452723 is an equidigital number, since it uses as much as digits as its factorization.

23452723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478641 (or 478634 counting only the distinct ones).

The product of its digits is 10080, while the sum is 28.

The square root of 23452723 is about 4842.8011522258. The cubic root of 23452723 is about 286.2405062862.

The spelling of 23452723 in words is "twenty-three million, four hundred fifty-two thousand, seven hundred twenty-three".

Divisors: 1 7 49 478627 3350389 23452723