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30140422420 = 2252695602309
BaseRepresentation
bin11100000100100000…
…100101100100010100
32212210112112002201111
4130010200211210110
5443211422004140
621502445504404
72114623235443
oct340440454424
985715462644
1030140422420
1111867534519
125a11b72104
132ac44bc7a4
14165cd5cd5a
15bb61157ea
hex704825914

30140422420 has 24 divisors (see below), whose sum is σ = 63530195400. Its totient is φ = 12011348352.

The previous prime is 30140422409. The next prime is 30140422471. The reversal of 30140422420 is 2422404103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2980723216 + 27159699204 = 54596^2 + 164802^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30140422391 and 30140422400.

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, 2795775 + ... + 2806534.

It is an arithmetic number, because the mean of its divisors is an integer number (2647091475).

Almost surely, 230140422420 is an apocalyptic number.

It is an amenable number.

30140422420 is an abundant number, since it is smaller than the sum of its proper divisors (33389772980).

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

30140422420 is a wasteful number, since it uses less digits than its factorization.

30140422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602587 (or 5602585 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 30140422420 its reverse (2422404103), we get a palindrome (32562826523).

The spelling of 30140422420 in words is "thirty billion, one hundred forty million, four hundred twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 269 538 1076 1345 2690 5380 5602309 11204618 22409236 28011545 56023090 112046180 1507021121 3014042242 6028084484 7535105605 15070211210 30140422420