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30314221031 = 199152332769
BaseRepresentation
bin11100001110110111…
…100100110111100111
32220020122112222121002
4130032313210313213
5444040420033111
621532014543515
72122133425103
oct341667446747
986218488532
1030314221031
1111946650a36
125a60207b9b
132b21501ac3
141678080903
15bc64e663b
hex70ede4de7

30314221031 has 4 divisors (see below), whose sum is σ = 30466554000. Its totient is φ = 30161888064.

The previous prime is 30314220983. The next prime is 30314221033. The reversal of 30314221031 is 13012241303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30314221031 - 210 = 30314220007 is a prime.

It is a super-2 number, since 2×303142210312 (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 = 30314220994 and 30314221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30314221033) 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, 76166186 + ... + 76166583.

It is an arithmetic number, because the mean of its divisors is an integer number (7616638500).

Almost surely, 230314221031 is an apocalyptic number.

30314221031 is a deficient number, since it is larger than the sum of its proper divisors (152332969).

30314221031 is a wasteful number, since it uses less digits than its factorization.

30314221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152332968.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30314221031 its reverse (13012241303), we get a palindrome (43326462334).

The spelling of 30314221031 in words is "thirty billion, three hundred fourteen million, two hundred twenty-one thousand, thirty-one".

Divisors: 1 199 152332769 30314221031