Base | Representation |
---|---|
bin | 11100011011110010… |
… | …110100100110011010 |
3 | 2220210202121111012012 |
4 | 130123302310212122 |
5 | 1000011424003204 |
6 | 22005322545522 |
7 | 2130405612554 |
oct | 343362644632 |
9 | 86722544165 |
10 | 30531078554 |
11 | 11a47aa8229 |
12 | 5b009682a2 |
13 | 2b5740c072 |
14 | 1698bb04d4 |
15 | bda58076e |
hex | 71bcb499a |
30531078554 has 16 divisors (see below), whose sum is σ = 47860338240. Its totient is φ = 14579648160.
The previous prime is 30531078541. The next prime is 30531078563. The reversal of 30531078554 is 45587013503.
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 7 ways as a sum of consecutive naturals, for example, 473267 + ... + 533894.
It is an arithmetic number, because the mean of its divisors is an integer number (2991271140).
Almost surely, 230531078554 is an apocalyptic number.
30531078554 is a deficient number, since it is larger than the sum of its proper divisors (17329259686).
30531078554 is a wasteful number, since it uses less digits than its factorization.
30531078554 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1007845.
The product of its (nonzero) digits is 252000, while the sum is 41.
The spelling of 30531078554 in words is "thirty billion, five hundred thirty-one million, seventy-eight thousand, five hundred fifty-four".
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