Base | Representation |
---|---|
bin | 11100101010011111… |
… | …010101010110101010 |
3 | 2221102221112111112220 |
4 | 130222133111112222 |
5 | 1001013033044244 |
6 | 22050011214510 |
7 | 2136461344044 |
oct | 345237252652 |
9 | 87387474486 |
10 | 30777628074 |
11 | 12064194566 |
12 | 5b6b447436 |
13 | 2b9651405b |
14 | 16bd82ca94 |
15 | c02032319 |
hex | 72a7d55aa |
30777628074 has 32 divisors (see below), whose sum is σ = 61901438976. Its totient is φ = 10201554480.
The previous prime is 30777627977. The next prime is 30777628111. The reversal of 30777628074 is 47082677703.
It is a super-2 number, since 2×307776280742 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5689479 + ... + 5694885.
It is an arithmetic number, because the mean of its divisors is an integer number (1934419968).
Almost surely, 230777628074 is an apocalyptic number.
30777628074 is an abundant number, since it is smaller than the sum of its proper divisors (31123810902).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30777628074 is a wasteful number, since it uses less digits than its factorization.
30777628074 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10570.
The product of its (nonzero) digits is 2765952, while the sum is 51.
The spelling of 30777628074 in words is "thirty billion, seven hundred seventy-seven million, six hundred twenty-eight thousand, seventy-four".
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