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30001432420 = 2251667899863
BaseRepresentation
bin11011111100001110…
…011000011101100100
32212102211222200021201
4123330032120131210
5442420331314140
621441002452244
72111314653001
oct337416303544
985384880251
1030001432420
11117a6032253
125993504084
132aa177709b
1416486dc8a8
15ba8d0d49a
hex6fc398764

30001432420 has 24 divisors (see below), whose sum is σ = 63040872384. Its totient is φ = 11993360736.

The previous prime is 30001432411. The next prime is 30001432427. The reversal of 30001432420 is 2423410003.

It is not an unprimeable number, because it can be changed into a prime (30001432427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416592 + ... + 483271.

It is an arithmetic number, because the mean of its divisors is an integer number (2626703016).

Almost surely, 230001432420 is an apocalyptic number.

It is an amenable number.

30001432420 is an abundant number, since it is smaller than the sum of its proper divisors (33039439964).

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

30001432420 is a wasteful number, since it uses less digits than its factorization.

30001432420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901539 (or 901537 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30001432420 its reverse (2423410003), we get a palindrome (32424842423).

The spelling of 30001432420 in words is "thirty billion, one million, four hundred thirty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1667 3334 6668 8335 16670 33340 899863 1799726 3599452 4499315 8998630 17997260 1500071621 3000143242 6000286484 7500358105 15000716210 30001432420