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30311021102 = 2127131192127
BaseRepresentation
bin11100001110101011…
…010111101000101110
32220020102112102010012
4130032223113220232
5444034110133402
621531422213222
72122064266625
oct341653275056
986212472105
1030311021102
111194486586a
125a5b124212
132b2095145b
14167788a6bc
15bc60b3452
hex70ead7a2e

30311021102 has 8 divisors (see below), whose sum is σ = 45470146176. Its totient is φ = 15154305712.

The previous prime is 30311021101. The next prime is 30311021107. The reversal of 30311021102 is 20112011303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311021101) 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, 570638 + ... + 621489.

It is an arithmetic number, because the mean of its divisors is an integer number (5683768272).

Almost surely, 230311021102 is an apocalyptic number.

30311021102 is a deficient number, since it is larger than the sum of its proper divisors (15159125074).

30311021102 is a wasteful number, since it uses less digits than its factorization.

30311021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204842.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30311021102 its reverse (20112011303), we get a palindrome (50423032405).

The spelling of 30311021102 in words is "thirty billion, three hundred eleven million, twenty-one thousand, one hundred two".

Divisors: 1 2 12713 25426 1192127 2384254 15155510551 30311021102