Base | Representation |
---|---|
bin | 11100100101010100… |
… | …010100011010110100 |
3 | 2221012220020221200210 |
4 | 130211110110122310 |
5 | 1000323324321310 |
6 | 22033231305420 |
7 | 2134355650101 |
oct | 344524243264 |
9 | 87186227623 |
10 | 30690854580 |
11 | 1201a207331 |
12 | 5b4637b270 |
13 | 2b815518a9 |
14 | 16b20c1aa8 |
15 | be95e1820 |
hex | 7255146b4 |
30690854580 has 96 divisors (see below), whose sum is σ = 86477884416. Its totient is φ = 8132576256.
The previous prime is 30690854569. The next prime is 30690854591. The reversal of 30690854580 is 8545809603.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (30690854569) and next prime (30690854591).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18521112 + ... + 18522768.
It is an arithmetic number, because the mean of its divisors is an integer number (900811296).
Almost surely, 230690854580 is an apocalyptic number.
30690854580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30690854580 is an abundant number, since it is smaller than the sum of its proper divisors (55787029836).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30690854580 is a wasteful number, since it uses less digits than its factorization.
30690854580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3433 (or 3431 counting only the distinct ones).
The product of its (nonzero) digits is 1036800, while the sum is 48.
The spelling of 30690854580 in words is "thirty billion, six hundred ninety million, eight hundred fifty-four thousand, five hundred eighty".
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