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30400042422 = 2310747352091
BaseRepresentation
bin11100010011111110…
…111101010110110110
32220110122001011102010
4130103332331112312
5444224402324142
621544322225050
72124225045201
oct342376752666
986418034363
1030400042422
1111990038902
125a84ab5186
132b3621caa9
141685620938
15bcdce9e9c
hex713fbd5b6

30400042422 has 16 divisors (see below), whose sum is σ = 61368311232. Its totient is φ = 10038643080.

The previous prime is 30400042391. The next prime is 30400042487. The reversal of 30400042422 is 22424000403.

It is a congruent number.

It is an unprimeable number.

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, 23675404 + ... + 23676687.

It is an arithmetic number, because the mean of its divisors is an integer number (3835519452).

Almost surely, 230400042422 is an apocalyptic number.

30400042422 is an abundant number, since it is smaller than the sum of its proper divisors (30968268810).

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

30400042422 is a wasteful number, since it uses less digits than its factorization.

30400042422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47352203.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 30400042422 its reverse (22424000403), we get a palindrome (52824042825).

The spelling of 30400042422 in words is "thirty billion, four hundred million, forty-two thousand, four hundred twenty-two".

Divisors: 1 2 3 6 107 214 321 642 47352091 94704182 142056273 284112546 5066673737 10133347474 15200021211 30400042422