Base | Representation |
---|---|
bin | 11100101000111000… |
… | …101011111110001000 |
3 | 2221101001220102110010 |
4 | 130220320223332020 |
5 | 1000434141014010 |
6 | 22043210351520 |
7 | 2136013543356 |
oct | 345070537610 |
9 | 87331812403 |
10 | 30750719880 |
11 | 1204aa85a91 |
12 | 5b6242b5a0 |
13 | 2b90a8244a |
14 | 16ba0267d6 |
15 | bee9b9620 |
hex | 728e2bf88 |
30750719880 has 64 divisors (see below), whose sum is σ = 92761905600. Its totient is φ = 8154881280.
The previous prime is 30750719851. The next prime is 30750719891. The reversal of 30750719880 is 8891705703.
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, 686170 + ... + 729609.
It is an arithmetic number, because the mean of its divisors is an integer number (1449404775).
Almost surely, 230750719880 is an apocalyptic number.
30750719880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30750719880 is an abundant number, since it is smaller than the sum of its proper divisors (62011185720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30750719880 is a wasteful number, since it uses less digits than its factorization.
30750719880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1415974 (or 1415970 counting only the distinct ones).
The product of its (nonzero) digits is 423360, while the sum is 48.
The spelling of 30750719880 in words is "thirty billion, seven hundred fifty million, seven hundred nineteen thousand, eight hundred eighty".
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