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72468233 = 589712289
BaseRepresentation
bin1000101000111…
…00011100001001
312001100202201122
410110130130021
5122022440413
611105125025
71536653435
oct424343411
9161322648
1072468233
11379a7502
1220329775
1312024116
1498a59c5
156567108
hex451c709

72468233 has 4 divisors (see below), whose sum is σ = 72486420. Its totient is φ = 72450048.

The previous prime is 72468199. The next prime is 72468241. The reversal of 72468233 is 33286427.

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 62932489 + 9535744 = 7933^2 + 3088^2 .

It is a cyclic number.

It is not a de Polignac number, because 72468233 - 212 = 72464137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72468193 and 72468202.

It is not an unprimeable number, because it can be changed into a prime (72468293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 12041.

It is an arithmetic number, because the mean of its divisors is an integer number (18121605).

Almost surely, 272468233 is an apocalyptic number.

It is an amenable number.

72468233 is a deficient number, since it is larger than the sum of its proper divisors (18187).

72468233 is a wasteful number, since it uses less digits than its factorization.

72468233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18186.

The product of its digits is 48384, while the sum is 35.

The square root of 72468233 is about 8512.8275561061. The cubic root of 72468233 is about 416.9166351456.

The spelling of 72468233 in words is "seventy-two million, four hundred sixty-eight thousand, two hundred thirty-three".

Divisors: 1 5897 12289 72468233