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30231100129 = 78311386039
BaseRepresentation
bin11100001001111010…
…011111101011100001
32220000212011000011011
4130021322133223201
5443403130201004
621515445220521
72120104053106
oct341172375341
986025130134
1030231100129
1111903738a7a
125a38401741
132b0a21b039
14166b004aad
15bbe078004
hex709e9fae1

30231100129 has 4 divisors (see below), whose sum is σ = 30231564480. Its totient is φ = 30230635780.

The previous prime is 30231100099. The next prime is 30231100169. The reversal of 30231100129 is 92100113203.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30231100129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30231100169) 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, 114709 + ... + 271330.

It is an arithmetic number, because the mean of its divisors is an integer number (7557891120).

Almost surely, 230231100129 is an apocalyptic number.

It is an amenable number.

30231100129 is a deficient number, since it is larger than the sum of its proper divisors (464351).

30231100129 is an equidigital number, since it uses as much as digits as its factorization.

30231100129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464350.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 30231100129 in words is "thirty billion, two hundred thirty-one million, one hundred thousand, one hundred twenty-nine".

Divisors: 1 78311 386039 30231100129