Base | Representation |
---|---|
bin | 11100001000111110… |
… | …000111011001010100 |
3 | 2212222202100212001220 |
4 | 130020332013121110 |
5 | 443340102201040 |
6 | 21514122050340 |
7 | 2116522401033 |
oct | 341076073124 |
9 | 85882325056 |
10 | 30215272020 |
11 | 118a580809a |
12 | 5a330499b0 |
13 | 2b06b687ab |
14 | 1668c8471a |
15 | bbc99d2d0 |
hex | 708f87654 |
30215272020 has 48 divisors (see below), whose sum is σ = 84672712320. Its totient is φ = 8050743936.
The previous prime is 30215272019. The next prime is 30215272037. The reversal of 30215272020 is 2027251203.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 134800 + ... + 280359.
It is an arithmetic number, because the mean of its divisors is an integer number (1764014840).
Almost surely, 230215272020 is an apocalyptic number.
30215272020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30215272020 is an abundant number, since it is smaller than the sum of its proper divisors (54457440300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30215272020 is a wasteful number, since it uses less digits than its factorization.
30215272020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 416384 (or 416382 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 24.
The spelling of 30215272020 in words is "thirty billion, two hundred fifteen million, two hundred seventy-two thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •