Search a number
-
+
72510113 = 137437507
BaseRepresentation
bin1000101001001…
…10101010100001
312001102220011202
410110212222201
5122030310423
611110050545
71540216514
oct424465241
9161386152
1072510113
1137a25a15
1220349a55
131203a1c0
1498b6d7b
156574728
hex4526aa1

72510113 has 8 divisors (see below), whose sum is σ = 78203328. Its totient is φ = 66833424.

The previous prime is 72510107. The next prime is 72510131. The reversal of 72510113 is 31101527.

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 72510113 - 216 = 72444577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72510133) 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 7 ways as a sum of consecutive naturals, for example, 5906 + ... + 13412.

It is an arithmetic number, because the mean of its divisors is an integer number (9775416).

Almost surely, 272510113 is an apocalyptic number.

It is an amenable number.

72510113 is a deficient number, since it is larger than the sum of its proper divisors (5693215).

72510113 is a wasteful number, since it uses less digits than its factorization.

72510113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8263.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 72510113 is about 8515.2870180635. The cubic root of 72510113 is about 416.9969328867.

The spelling of 72510113 in words is "seventy-two million, five hundred ten thousand, one hundred thirteen".

Divisors: 1 13 743 7507 9659 97591 5577701 72510113