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30155055016 = 23672839693
BaseRepresentation
bin11100000101011000…
…011001111110101000
32212211120001111212111
4130011120121332220
5443224143230031
621504131252104
72115161511202
oct340530317650
985746044774
1030155055016
1111874819179
125a16a4a034
132ac7543b28
141660c8b772
15bb75561b1
hex705619fa8

30155055016 has 24 divisors (see below), whose sum is σ = 57397283370. Its totient is φ = 14852472096.

The previous prime is 30155055013. The next prime is 30155055043. The reversal of 30155055016 is 61055055103.

It can be written as a sum of positive squares in only one way, i.e., 27209822116 + 2945232900 = 164954^2 + 54270^2 .

It is not an unprimeable number, because it can be changed into a prime (30155055013) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 383935 + ... + 455758.

Almost surely, 230155055016 is an apocalyptic number.

It is an amenable number.

30155055016 is a deficient number, since it is larger than the sum of its proper divisors (27242228354).

30155055016 is an equidigital number, since it uses as much as digits as its factorization.

30155055016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839833 (or 839762 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 30155055016 in words is "thirty billion, one hundred fifty-five million, fifty-five thousand, sixteen".

Divisors: 1 2 4 8 67 134 268 536 4489 8978 17956 35912 839693 1679386 3358772 6717544 56259431 112518862 225037724 450075448 3769381877 7538763754 15077527508 30155055016