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30637277113 = 80813791273
BaseRepresentation
bin11100100010000111…
…111011111110111001
32221002011102221020011
4130202013323332321
51000221120331423
622024035101521
72133135362422
oct344207737671
987064387204
1030637277113
1111aa1a42833
125b304418a1
132b73413051
1416a8d36649
15be4a5bb0d
hex7221fbfb9

30637277113 has 4 divisors (see below), whose sum is σ = 30641076468. Its totient is φ = 30633477760.

The previous prime is 30637277087. The next prime is 30637277119. The reversal of 30637277113 is 31177273603.

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 7978598329 + 22658678784 = 89323^2 + 150528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30637277113 is a prime.

It is a super-2 number, since 2×306372771132 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30637277119) 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, 1887556 + ... + 1903717.

It is an arithmetic number, because the mean of its divisors is an integer number (7660269117).

Almost surely, 230637277113 is an apocalyptic number.

It is an amenable number.

30637277113 is a deficient number, since it is larger than the sum of its proper divisors (3799355).

30637277113 is an equidigital number, since it uses as much as digits as its factorization.

30637277113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799354.

The product of its (nonzero) digits is 111132, while the sum is 40.

The spelling of 30637277113 in words is "thirty billion, six hundred thirty-seven million, two hundred seventy-seven thousand, one hundred thirteen".

Divisors: 1 8081 3791273 30637277113