Base | Representation |
---|---|
bin | 100000100010111010… |
… | …1001001110001001000 |
3 | 20200101211022121111100 |
4 | 1001011311021301020 |
5 | 2121114101211110 |
6 | 52035115301400 |
7 | 5022652011000 |
oct | 1010565116110 |
9 | 220354277440 |
10 | 69891038280 |
11 | 2770573a568 |
12 | 1166644a860 |
13 | 678a9b6a6b |
14 | 3550371000 |
15 | 1c40c8abc0 |
hex | 1045d49c48 |
69891038280 has 192 divisors, whose sum is σ = 264893616000. Its totient is φ = 15975066240.
The previous prime is 69891038213. The next prime is 69891038303. The reversal of 69891038280 is 8283019896.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159526 + ... + 406485.
It is an arithmetic number, because the mean of its divisors is an integer number (1379654250).
Almost surely, 269891038280 is an apocalyptic number.
69891038280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
69891038280 is an abundant number, since it is smaller than the sum of its proper divisors (195002577720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69891038280 is a wasteful number, since it uses less digits than its factorization.
69891038280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 566049 (or 566028 counting only the distinct ones).
The product of its (nonzero) digits is 1492992, while the sum is 54.
The spelling of 69891038280 in words is "sixty-nine billion, eight hundred ninety-one million, thirty-eight thousand, two hundred eighty".
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