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30311110102 = 2713792108159
BaseRepresentation
bin11100001110101011…
…101101010111010110
32220020102200221012111
4130032223231113112
5444034121010402
621531424141234
72122065120250
oct341653552726
986212627174
1030311110102
1111944916719
125a5b16781a
132b20982b10
1416778b0cd0
15bc60ce9d7
hex70eaed5d6

30311110102 has 32 divisors (see below), whose sum is σ = 56667340800. Its totient is φ = 11839415328.

The previous prime is 30311110099. The next prime is 30311110103. The reversal of 30311110102 is 20101111303.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311110103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039702 + ... + 1068457.

It is an arithmetic number, because the mean of its divisors is an integer number (1770854400).

Almost surely, 230311110102 is an apocalyptic number.

30311110102 is a deficient number, since it is larger than the sum of its proper divisors (26356230698).

30311110102 is a wasteful number, since it uses less digits than its factorization.

30311110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108260.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30311110102 its reverse (20101111303), we get a palindrome (50412221405).

The spelling of 30311110102 in words is "thirty billion, three hundred eleven million, one hundred ten thousand, one hundred two".

Divisors: 1 2 7 13 14 26 79 91 158 182 553 1027 1106 2054 7189 14378 2108159 4216318 14757113 27406067 29514226 54812134 166544561 191842469 333089122 383684938 1165811927 2165079293 2331623854 4330158586 15155555051 30311110102