Base | Representation |
---|---|
bin | 11100010001011110… |
… | …111101101110001000 |
3 | 2220100201010022102101 |
4 | 130101132331232020 |
5 | 444133133211442 |
6 | 21540223243144 |
7 | 2123205412501 |
oct | 342136755610 |
9 | 86321108371 |
10 | 30358100872 |
11 | 119693a1570 |
12 | 5a72a494b4 |
13 | 2b2a6265c8 |
14 | 167dc23ba8 |
15 | bca2b2cb7 |
hex | 7117bdb88 |
30358100872 has 16 divisors (see below), whose sum is σ = 62096115600. Its totient is φ = 13799136720.
The previous prime is 30358100837. The next prime is 30358100909. The reversal of 30358100872 is 27800185303.
It is a super-2 number, since 2×303581008722 (a number of 22 digits) contains 22 as substring.
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 3 ways as a sum of consecutive naturals, for example, 172489122 + ... + 172489297.
It is an arithmetic number, because the mean of its divisors is an integer number (3881007225).
Almost surely, 230358100872 is an apocalyptic number.
It is an amenable number.
30358100872 is an abundant number, since it is smaller than the sum of its proper divisors (31738014728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30358100872 is a wasteful number, since it uses less digits than its factorization.
30358100872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 344978436 (or 344978432 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 37.
The spelling of 30358100872 in words is "thirty billion, three hundred fifty-eight million, one hundred thousand, eight hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •