Base | Representation |
---|---|
bin | 101111101001001001… |
… | …0000010110100000000 |
3 | 100210002022102221010212 |
4 | 1133102102002310000 |
5 | 3134013410141110 |
6 | 115000201213252 |
7 | 10251251202533 |
oct | 1372222026400 |
9 | 323068387125 |
10 | 102312193280 |
11 | 3a432625140 |
12 | 179b4191228 |
13 | 985686384b |
14 | 4d48184a1a |
15 | 29dc218e05 |
hex | 17d2482d00 |
102312193280 has 72 divisors (see below), whose sum is σ = 267348773664. Its totient is φ = 37204428800.
The previous prime is 102312193231. The next prime is 102312193283. The reversal of 102312193280 is 82391213201.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102312193283) 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, 3619166 + ... + 3647325.
It is an arithmetic number, because the mean of its divisors is an integer number (3713177412).
Almost surely, 2102312193280 is an apocalyptic number.
102312193280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
102312193280 is an abundant number, since it is smaller than the sum of its proper divisors (165036580384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102312193280 is an equidigital number, since it uses as much as digits as its factorization.
102312193280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7266523 (or 7266509 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 32.
It can be divided in two parts, 102312 and 193280, that added together give a palindrome (295592).
The spelling of 102312193280 in words is "one hundred two billion, three hundred twelve million, one hundred ninety-three thousand, two hundred eighty".
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