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30311311110 = 2351010377037
BaseRepresentation
bin11100001110101100…
…011110011100000110
32220020110002010221020
4130032230132130012
5444034143423420
621531432332010
72122066615263
oct341654363406
986213063836
1030311311110
1111944a43743
125a5b244006
132b20a23462
14167792426a
15bc611e340
hex70eb1e706

30311311110 has 16 divisors (see below), whose sum is σ = 72747146736. Its totient is φ = 8083016288.

The previous prime is 30311311109. The next prime is 30311311123. The reversal of 30311311110 is 1111311303.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30311311110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505188489 + ... + 505188548.

It is an arithmetic number, because the mean of its divisors is an integer number (4546696671).

Almost surely, 230311311110 is an apocalyptic number.

30311311110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30311311110 is an abundant number, since it is smaller than the sum of its proper divisors (42435835626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30311311110 is a wasteful number, since it uses less digits than its factorization.

30311311110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010377047.

The product of its (nonzero) digits is 27, while the sum is 15.

Adding to 30311311110 its reverse (1111311303), we get a palindrome (31422622413).

The spelling of 30311311110 in words is "thirty billion, three hundred eleven million, three hundred eleven thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1010377037 2020754074 3031131111 5051885185 6062262222 10103770370 15155655555 30311311110