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30504210020 = 2253134872877
BaseRepresentation
bin11100011010001100…
…010100111001100100
32220201220001102111022
4130122030110321210
5444433034210040
622002523030312
72126631335624
oct343214247144
986656042438
1030504210020
1111a33916529
125ab396b398
132b5199251b
1416953b8884
15bd80246b5
hex71a314e64

30504210020 has 24 divisors (see below), whose sum is σ = 64263515064. Its totient is φ = 12162698496.

The previous prime is 30504210017. The next prime is 30504210053. The reversal of 30504210020 is 2001240503.

It can be written as a sum of positive squares in 4 ways, for example, as 337383424 + 30166826596 = 18368^2 + 173686^2 .

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, 2430179 + ... + 2442698.

It is an arithmetic number, because the mean of its divisors is an integer number (2677646461).

Almost surely, 230504210020 is an apocalyptic number.

It is an amenable number.

30504210020 is an abundant number, since it is smaller than the sum of its proper divisors (33759305044).

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

30504210020 is a wasteful number, since it uses less digits than its factorization.

30504210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873199 (or 4873197 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 30504210020 its reverse (2001240503), we get a palindrome (32505450523).

The spelling of 30504210020 in words is "thirty billion, five hundred four million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 313 626 1252 1565 3130 6260 4872877 9745754 19491508 24364385 48728770 97457540 1525210501 3050421002 6100842004 7626052505 15252105010 30504210020