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30110220031 = 89465772647
BaseRepresentation
bin11100000010101101…
…010111111011111111
32212201102200122211111
4130002231113323333
5443131204020111
621455450302451
72114105435023
oct340255277377
985642618744
1030110220031
1111851485a71
125a03a27a27
132abb176658
141658d3a383
15bb364ba21
hex702b57eff

30110220031 has 8 divisors (see below), whose sum is σ = 30455494560. Its totient is φ = 29765100288.

The previous prime is 30110220029. The next prime is 30110220043. The reversal of 30110220031 is 13002201103.

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

It is a cyclic number.

It is not a de Polignac number, because 30110220031 - 21 = 30110220029 is a prime.

It is a super-2 number, since 2×301102200312 (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 = 30110219993 and 30110220020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30110220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378150 + ... + 450796.

It is an arithmetic number, because the mean of its divisors is an integer number (3806936820).

Almost surely, 230110220031 is an apocalyptic number.

30110220031 is a deficient number, since it is larger than the sum of its proper divisors (345274529).

30110220031 is an equidigital number, since it uses as much as digits as its factorization.

30110220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77393.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30110220031 its reverse (13002201103), we get a palindrome (43112421134).

The spelling of 30110220031 in words is "thirty billion, one hundred ten million, two hundred twenty thousand, thirty-one".

Divisors: 1 89 4657 72647 414473 6465583 338317079 30110220031