Base | Representation |
---|---|
bin | 11100001111111100… |
… | …010010000101011100 |
3 | 2220021220110001001001 |
4 | 130033330102011130 |
5 | 444110022411103 |
6 | 21533501000044 |
7 | 2122442501230 |
oct | 341774220534 |
9 | 86256401031 |
10 | 30332232028 |
11 | 1195583295a |
12 | 5a66253024 |
13 | 2b25169ab7 |
14 | 167a60c5c0 |
15 | bc7da301d |
hex | 70ff1215c |
30332232028 has 48 divisors (see below), whose sum is σ = 61360104960. Its totient is φ = 12850975296.
The previous prime is 30332232013. The next prime is 30332232107. The reversal of 30332232028 is 82023223303.
It is a Harshad number since it is a multiple of its sum of digits (28).
It is a junction number, because it is equal to n+sod(n) for n = 30332231987 and 30332232005.
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, 1448658 + ... + 1469446.
It is an arithmetic number, because the mean of its divisors is an integer number (1278335520).
Almost surely, 230332232028 is an apocalyptic number.
It is an amenable number.
30332232028 is an abundant number, since it is smaller than the sum of its proper divisors (31027872932).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30332232028 is a wasteful number, since it uses less digits than its factorization.
30332232028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21394 (or 21392 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 28.
The spelling of 30332232028 in words is "thirty billion, three hundred thirty-two million, two hundred thirty-two thousand, twenty-eight".
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