Base | Representation |
---|---|
bin | 11100110000000001… |
… | …100011110110100000 |
3 | 2221200102021012021100 |
4 | 130300001203312200 |
5 | 1001210321031212 |
6 | 22103125354400 |
7 | 2141666543112 |
oct | 346001436640 |
9 | 87612235240 |
10 | 30870486432 |
11 | 12101648405 |
12 | 5b96568a00 |
13 | 2bac827026 |
14 | 16cbcc13b2 |
15 | c0a275bdc |
hex | 730063da0 |
30870486432 has 72 divisors (see below), whose sum is σ = 87804924480. Its totient is φ = 10288172160.
The previous prime is 30870486419. The next prime is 30870486487. The reversal of 30870486432 is 23468407803.
It is a tau number, because it is divible by the number of its divisors (72).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2837419 + ... + 2848277.
It is an arithmetic number, because the mean of its divisors is an integer number (1219512840).
Almost surely, 230870486432 is an apocalyptic number.
30870486432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30870486432 is an abundant number, since it is smaller than the sum of its proper divisors (56934438048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30870486432 is a wasteful number, since it uses less digits than its factorization.
30870486432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20746 (or 20735 counting only the distinct ones).
The product of its (nonzero) digits is 774144, while the sum is 45.
The spelling of 30870486432 in words is "thirty billion, eight hundred seventy million, four hundred eighty-six thousand, four hundred thirty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •