Base | Representation |
---|---|
bin | 1000101011101… |
… | …11110010001110 |
3 | 12002001202222000 |
4 | 10111313302032 |
5 | 122121424012 |
6 | 11121133130 |
7 | 1543102314 |
oct | 425676216 |
9 | 162052860 |
10 | 72842382 |
11 | 38132618 |
12 | 2048a1a6 |
13 | 12125502 |
14 | 99620b4 |
15 | 65dcddc |
hex | 4577c8e |
72842382 has 32 divisors (see below), whose sum is σ = 171396000. Its totient is φ = 22852224.
The previous prime is 72842369. The next prime is 72842383. The reversal of 72842382 is 28324827.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72842383) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38757 + ... + 40592.
It is an arithmetic number, because the mean of its divisors is an integer number (5356125).
Almost surely, 272842382 is an apocalyptic number.
72842382 is an abundant number, since it is smaller than the sum of its proper divisors (98553618).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72842382 is a wasteful number, since it uses less digits than its factorization.
72842382 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79377 (or 79371 counting only the distinct ones).
The product of its digits is 43008, while the sum is 36.
The square root of 72842382 is about 8534.7748652205. The cubic root of 72842382 is about 417.6329087885.
The spelling of 72842382 in words is "seventy-two million, eight hundred forty-two thousand, three hundred eighty-two".
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