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30110321031 = 372707529673
BaseRepresentation
bin11100000010101101…
…110000100110000111
32212201102212210101020
4130002231300212013
5443131220233111
621455452402223
72114106335340
oct340255604607
985642783336
1030110321031
111185154493a
125a03a76373
132abb1b060b
141658d650c7
15bb366b906
hex702b70987

30110321031 has 16 divisors (see below), whose sum is σ = 45899430144. Its totient is φ = 17199509184.

The previous prime is 30110321029. The next prime is 30110321047. The reversal of 30110321031 is 13012301103.

It is not a de Polignac number, because 30110321031 - 21 = 30110321029 is a prime.

It is a super-2 number, since 2×301103210312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30110321031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30110321011) 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, 207990 + ... + 321683.

It is an arithmetic number, because the mean of its divisors is an integer number (2868714384).

Almost surely, 230110321031 is an apocalyptic number.

30110321031 is a deficient number, since it is larger than the sum of its proper divisors (15789109113).

30110321031 is a wasteful number, since it uses less digits than its factorization.

30110321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532390.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 30110321031 its reverse (13012301103), we get a palindrome (43122622134).

The spelling of 30110321031 in words is "thirty billion, one hundred ten million, three hundred twenty-one thousand, thirty-one".

Divisors: 1 3 7 21 2707 8121 18949 56847 529673 1589019 3707711 11123133 1433824811 4301474433 10036773677 30110321031