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30279866130641 = 155319497660097
BaseRepresentation
bin1101110001010000101001…
…01010100010000011010001
310222012201121221012020202002
412320220110222202003101
512432101131212140031
6144222213425403345
76243435211300151
oct670502452420321
9128181557166662
1030279866130641
11971468a0442a6
123490535a99555
1313b84c0c2149a
147697a651a761
153779aeac6ccb
hex1b8a14aa20d1

30279866130641 has 4 divisors (see below), whose sum is σ = 30299363792292. Its totient is φ = 30260368468992.

The previous prime is 30279866130601. The next prime is 30279866130667. The reversal of 30279866130641 is 14603166897203.

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 18616247769025 + 11663618361616 = 4314655^2 + 3415204^2 .

It is a cyclic number.

It is not a de Polignac number, because 30279866130641 - 214 = 30279866114257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30279866130601) 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, 9748828496 + ... + 9748831601.

It is an arithmetic number, because the mean of its divisors is an integer number (7574840948073).

Almost surely, 230279866130641 is an apocalyptic number.

It is an amenable number.

30279866130641 is a deficient number, since it is larger than the sum of its proper divisors (19497661651).

30279866130641 is a wasteful number, since it uses less digits than its factorization.

30279866130641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19497661650.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 30279866130641 in words is "thirty trillion, two hundred seventy-nine billion, eight hundred sixty-six million, one hundred thirty thousand, six hundred forty-one".

Divisors: 1 1553 19497660097 30279866130641