Base | Representation |
---|---|
bin | 101111110101010100… |
… | …1000100011111111100 |
3 | 100211010210110111121110 |
4 | 1133222221010133330 |
5 | 3140333021221214 |
6 | 115104521002020 |
7 | 10264343045040 |
oct | 1375251043774 |
9 | 324123414543 |
10 | 102720882684 |
11 | 3a622295582 |
12 | 17aa9023310 |
13 | 98c04282b4 |
14 | 4d8656c020 |
15 | 2a13047159 |
hex | 17eaa447fc |
102720882684 has 96 divisors (see below), whose sum is σ = 278740349440. Its totient is φ = 28836974592.
The previous prime is 102720882679. The next prime is 102720882727. The reversal of 102720882684 is 486288027201.
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, 1087224 + ... + 1177920.
Almost surely, 2102720882684 is an apocalyptic number.
102720882684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 102720882684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139370174720).
102720882684 is an abundant number, since it is smaller than the sum of its proper divisors (176019466756).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102720882684 is a wasteful number, since it uses less digits than its factorization.
102720882684 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 90947 (or 90945 counting only the distinct ones).
The product of its (nonzero) digits is 688128, while the sum is 48.
The spelling of 102720882684 in words is "one hundred two billion, seven hundred twenty million, eight hundred eighty-two thousand, six hundred eighty-four".
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