Base | Representation |
---|---|
bin | 11100010011010001… |
… | …111101001101011110 |
3 | 2220102210211210212020 |
4 | 130103101331031132 |
5 | 444213342322332 |
6 | 21543221321010 |
7 | 2124022552320 |
oct | 342321751536 |
9 | 86383753766 |
10 | 30388245342 |
11 | 11984410554 |
12 | 5a80b66166 |
13 | 2b3394c280 |
14 | 1683c2d610 |
15 | bccc6982c |
hex | 71347d35e |
30388245342 has 32 divisors (see below), whose sum is σ = 74801836032. Its totient is φ = 8014482144.
The previous prime is 30388245337. The next prime is 30388245359. The reversal of 30388245342 is 24354288303.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a junction number, because it is equal to n+sod(n) for n = 30388245294 and 30388245303.
It is a congruent number.
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, 27827518 + ... + 27828609.
It is an arithmetic number, because the mean of its divisors is an integer number (2337557376).
Almost surely, 230388245342 is an apocalyptic number.
30388245342 is an abundant number, since it is smaller than the sum of its proper divisors (44413590690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30388245342 is a wasteful number, since it uses less digits than its factorization.
30388245342 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55656152.
The product of its (nonzero) digits is 552960, while the sum is 42.
The spelling of 30388245342 in words is "thirty billion, three hundred eighty-eight million, two hundred forty-five thousand, three hundred forty-two".
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