Search a number
-
+
72625265 = 537392569
BaseRepresentation
bin1000101010000…
…10110001110001
312001122202010122
410111002301301
5122043002030
611112340025
71541206316
oct425026161
9161582118
1072625265
1137aa4489
12203a4615
131207a73b
149906d0d
1565988e5
hex4542c71

72625265 has 8 divisors (see below), whose sum is σ = 89505960. Its totient is φ = 56529792.

The previous prime is 72625243. The next prime is 72625279. The reversal of 72625265 is 56252627.

It can be written as a sum of positive squares in 4 ways, for example, as 20106256 + 52519009 = 4484^2 + 7247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72625265 - 210 = 72624241 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 196100 + ... + 196469.

It is an arithmetic number, because the mean of its divisors is an integer number (11188245).

Almost surely, 272625265 is an apocalyptic number.

It is an amenable number.

72625265 is a deficient number, since it is larger than the sum of its proper divisors (16880695).

72625265 is a wasteful number, since it uses less digits than its factorization.

72625265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392611.

The product of its digits is 50400, while the sum is 35.

The square root of 72625265 is about 8522.0458224537. The cubic root of 72625265 is about 417.2175579020.

The spelling of 72625265 in words is "seventy-two million, six hundred twenty-five thousand, two hundred sixty-five".

Divisors: 1 5 37 185 392569 1962845 14525053 72625265