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30438002955 = 356133265577
BaseRepresentation
bin11100010110001111…
…110001000100001011
32220120021110202110210
4130112033301010023
5444314112043310
621552200012203
72125165520253
oct342617610413
986507422423
1030438002955
11119aa506148
125a95761063
132b41051249
14168a6a2963
15bd22e7820
hex7163f110b

30438002955 has 16 divisors (see below), whose sum is σ = 49499180064. Its totient is φ = 15967476480.

The previous prime is 30438002929. The next prime is 30438002963. The reversal of 30438002955 is 55920083403.

It is not a de Polignac number, because 30438002955 - 25 = 30438002923 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16631874 + ... + 16633703.

It is an arithmetic number, because the mean of its divisors is an integer number (3093698754).

Almost surely, 230438002955 is an apocalyptic number.

30438002955 is a deficient number, since it is larger than the sum of its proper divisors (19061177109).

30438002955 is a wasteful number, since it uses less digits than its factorization.

30438002955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33265646.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 30438002955 in words is "thirty billion, four hundred thirty-eight million, two thousand, nine hundred fifty-five".

Divisors: 1 3 5 15 61 183 305 915 33265577 99796731 166327885 498983655 2029200197 6087600591 10146000985 30438002955