Base | Representation |
---|---|
bin | 1100001111011… |
… | …00101011000000 |
3 | 21011012202020101 |
4 | 12013230223000 |
5 | 202241300110 |
6 | 14104452144 |
7 | 2354530222 |
oct | 607545300 |
9 | 234182211 |
10 | 102681280 |
11 | 52a62a69 |
12 | 2a47a054 |
13 | 18372070 |
14 | d8cc412 |
15 | 903413a |
hex | 61ecac0 |
102681280 has 56 divisors (see below), whose sum is σ = 263328912. Its totient is φ = 37911552.
The previous prime is 102681247. The next prime is 102681283. The reversal of 102681280 is 82186201.
It is not an unprimeable number, because it can be changed into a prime (102681283) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8182 + ... + 16501.
It is an arithmetic number, because the mean of its divisors is an integer number (4702302).
Almost surely, 2102681280 is an apocalyptic number.
102681280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
102681280 is an abundant number, since it is smaller than the sum of its proper divisors (160647632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102681280 is a wasteful number, since it uses less digits than its factorization.
102681280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24713 (or 24703 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 28.
The square root of 102681280 is about 10133.1771917795. The cubic root of 102681280 is about 468.2708150852.
The spelling of 102681280 in words is "one hundred two million, six hundred eighty-one thousand, two hundred eighty".
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