Base | Representation |
---|---|
bin | 11100110001000000… |
… | …011100011001011111 |
3 | 2221201120021200210222 |
4 | 130301000130121133 |
5 | 1001224031032400 |
6 | 22104514551555 |
7 | 2142256631030 |
oct | 346100343137 |
9 | 87646250728 |
10 | 30886970975 |
11 | 1210a9874a3 |
12 | 5b9bb985bb |
13 | 2bb30792b3 |
14 | 16d0172a87 |
15 | c0b930185 |
hex | 73101c65f |
30886970975 has 12 divisors (see below), whose sum is σ = 43771250544. Its totient is φ = 21179637120.
The previous prime is 30886970941. The next prime is 30886970977. The reversal of 30886970975 is 57907968803.
It is not a de Polignac number, because 30886970975 - 212 = 30886966879 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30886970977) 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 11 ways as a sum of consecutive naturals, for example, 88248314 + ... + 88248663.
It is an arithmetic number, because the mean of its divisors is an integer number (3647604212).
Almost surely, 230886970975 is an apocalyptic number.
30886970975 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30886970975 is a deficient number, since it is larger than the sum of its proper divisors (12884279569).
30886970975 is a wasteful number, since it uses less digits than its factorization.
30886970975 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 176496994 (or 176496989 counting only the distinct ones).
The product of its (nonzero) digits is 22861440, while the sum is 62.
The spelling of 30886970975 in words is "thirty billion, eight hundred eighty-six million, nine hundred seventy thousand, nine hundred seventy-five".
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