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30202252255 = 572123274499
BaseRepresentation
bin11100001000001100…
…011100101111011111
32212221211212101022101
4130020030130233133
5443323234033010
621512535025531
72116303623400
oct341014345737
985854771271
1030202252255
111189942515a
125a2a80b2a7
132b0425a5a6
1416672559a7
15bbb77a73a
hex70831cbdf

30202252255 has 12 divisors (see below), whose sum is σ = 42159879000. Its totient is φ = 20710115664.

The previous prime is 30202252211. The next prime is 30202252273. The reversal of 30202252255 is 55225220203.

It is not a de Polignac number, because 30202252255 - 27 = 30202252127 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 61637005 + ... + 61637494.

It is an arithmetic number, because the mean of its divisors is an integer number (3513323250).

Almost surely, 230202252255 is an apocalyptic number.

30202252255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30202252255 is a deficient number, since it is larger than the sum of its proper divisors (11957626745).

30202252255 is a wasteful number, since it uses less digits than its factorization.

30202252255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123274518 (or 123274511 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 30202252255 its reverse (55225220203), we get a palindrome (85427472458).

The spelling of 30202252255 in words is "thirty billion, two hundred two million, two hundred fifty-two thousand, two hundred fifty-five".

Divisors: 1 5 7 35 49 245 123274499 616372495 862921493 4314607465 6040450451 30202252255