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30502105542 = 2321694561419
BaseRepresentation
bin11100011010000100…
…010011000111000110
32220201202002111200200
4130122010103013012
5444432014334132
622002405551330
72126604422256
oct343204230706
986652074620
1030502105542
1111a32709397
125ab3115546
132b5140667c
141694dcb966
15bd7c5ad7c
hex71a1131c6

30502105542 has 12 divisors (see below), whose sum is σ = 66087895380. Its totient is φ = 10167368508.

The previous prime is 30502105519. The next prime is 30502105553. The reversal of 30502105542 is 24550120503.

It is a happy number.

30502105542 is a `hidden beast` number, since 3 + 0 + 502 + 105 + 54 + 2 = 666.

It is a super-2 number, since 2×305021055422 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 847280692 + ... + 847280727.

It is an arithmetic number, because the mean of its divisors is an integer number (5507324615).

Almost surely, 230502105542 is an apocalyptic number.

30502105542 is an abundant number, since it is smaller than the sum of its proper divisors (35585789838).

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

30502105542 is a wasteful number, since it uses less digits than its factorization.

30502105542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694561427 (or 1694561424 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 30502105542 in words is "thirty billion, five hundred two million, one hundred five thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 1694561419 3389122838 5083684257 10167368514 15251052771 30502105542