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30110220020 = 2253148564871
BaseRepresentation
bin11100000010101101…
…010111111011110100
32212201102200122211002
4130002231113323310
5443131204020040
621455450302432
72114105435006
oct340255277364
985642618732
1030110220020
1111851485a61
125a03a27a18
132abb17664a
141658d3a376
15bb364ba15
hex702b57ef4

30110220020 has 24 divisors (see below), whose sum is σ = 65271187968. Its totient is φ = 11655568800.

The previous prime is 30110220001. The next prime is 30110220029. The reversal of 30110220020 is 2002201103.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30110219983 and 30110220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30110220029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24281816 + ... + 24283055.

It is an arithmetic number, because the mean of its divisors is an integer number (2719632832).

Almost surely, 230110220020 is an apocalyptic number.

It is an amenable number.

30110220020 is an abundant number, since it is smaller than the sum of its proper divisors (35160967948).

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

30110220020 is a wasteful number, since it uses less digits than its factorization.

30110220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48564911 (or 48564909 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30110220020 its reverse (2002201103), we get a palindrome (32112421123).

The spelling of 30110220020 in words is "thirty billion, one hundred ten million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 48564871 97129742 194259484 242824355 485648710 971297420 1505511001 3011022002 6022044004 7527555005 15055110010 30110220020