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30326561141 = 52631576211
BaseRepresentation
bin11100001111100110…
…101001100101110101
32220021111202221001012
4130033212221211311
5444102044424031
621533135242005
72122343342102
oct341746514565
986244687035
1030326561141
111195260a278
125a64379305
132b23c32846
141679973aa9
15bc7632b2b
hex70f9a9975

30326561141 has 4 divisors (see below), whose sum is σ = 30327189984. Its totient is φ = 30325932300.

The previous prime is 30326561129. The next prime is 30326561173. The reversal of 30326561141 is 14116562303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14116562303 = 21296630607.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30326561141 is a prime.

It is a super-2 number, since 2×303265611412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30326561098 and 30326561107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30326561191) 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, 235475 + ... + 340736.

It is an arithmetic number, because the mean of its divisors is an integer number (7581797496).

Almost surely, 230326561141 is an apocalyptic number.

It is an amenable number.

30326561141 is a deficient number, since it is larger than the sum of its proper divisors (628843).

30326561141 is an equidigital number, since it uses as much as digits as its factorization.

30326561141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628842.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 30326561141 in words is "thirty billion, three hundred twenty-six million, five hundred sixty-one thousand, one hundred forty-one".

Divisors: 1 52631 576211 30326561141