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30098713 = 173173981
BaseRepresentation
bin111001011010…
…0010100011001
32002122011200011
41302310110121
530201124323
62553041521
7513556231
oct162642431
962564604
1030098713
1115a98677
12a0b62a1
13630abb8
143dd6cc1
15299820d
hex1cb4519

30098713 has 4 divisors (see below), whose sum is σ = 30272868. Its totient is φ = 29924560.

The previous prime is 30098711. The next prime is 30098741. The reversal of 30098713 is 31789003.

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 23687689 + 6411024 = 4867^2 + 2532^2 .

It is a cyclic number.

It is not a de Polignac number, because 30098713 - 21 = 30098711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30098711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86818 + ... + 87163.

It is an arithmetic number, because the mean of its divisors is an integer number (7568217).

Almost surely, 230098713 is an apocalyptic number.

It is an amenable number.

30098713 is a deficient number, since it is larger than the sum of its proper divisors (174155).

30098713 is a wasteful number, since it uses less digits than its factorization.

30098713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174154.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 30098713 is about 5486.2293973183. The cubic root of 30098713 is about 311.0636821925.

The spelling of 30098713 in words is "thirty million, ninety-eight thousand, seven hundred thirteen".

Divisors: 1 173 173981 30098713