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72418714 = 236209357
BaseRepresentation
bin1000101000100…
…00010110011010
312001021020210121
410110100112122
5122014344324
611104103454
71536356164
oct424202632
9161236717
1072418714
1137973285
1220304b8a
1312007714
149891934
1565575e4
hex451059a

72418714 has 4 divisors (see below), whose sum is σ = 108628074. Its totient is φ = 36209356.

The previous prime is 72418711. The next prime is 72418721. The reversal of 72418714 is 41781427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41781427 = 172457731.

It can be written as a sum of positive squares in only one way, i.e., 45118089 + 27300625 = 6717^2 + 5225^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72418714.

It is not an unprimeable number, because it can be changed into a prime (72418711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18104677 + ... + 18104680.

Almost surely, 272418714 is an apocalyptic number.

72418714 is a deficient number, since it is larger than the sum of its proper divisors (36209360).

72418714 is a wasteful number, since it uses less digits than its factorization.

72418714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36209359.

The product of its digits is 12544, while the sum is 34.

The square root of 72418714 is about 8509.9185660028. The cubic root of 72418714 is about 416.8216510023.

It can be divided in two parts, 724187 and 14, that added together give a square (724201 = 8512).

The spelling of 72418714 in words is "seventy-two million, four hundred eighteen thousand, seven hundred fourteen".

Divisors: 1 2 36209357 72418714