Base | Representation |
---|---|
bin | 1000011111011111011… |
… | …0100001101000111000 |
3 | 111221120110212222100111 |
4 | 2013313312201220320 |
5 | 4342241344433210 |
6 | 151004423514104 |
7 | 13353226061062 |
oct | 2076766415070 |
9 | 457513788314 |
10 | 145892186680 |
11 | 56966377209 |
12 | 24336bb8934 |
13 | 109b050caa6 |
14 | 70bddb4732 |
15 | 3bdd15e88a |
hex | 21f7da1a38 |
145892186680 has 32 divisors (see below), whose sum is σ = 328637865600. Its totient is φ = 58289239936.
The previous prime is 145892186669. The next prime is 145892186681. The reversal of 145892186680 is 86681298541.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145892186681) 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, 2078635 + ... + 2147674.
It is an arithmetic number, because the mean of its divisors is an integer number (10269933300).
Almost surely, 2145892186680 is an apocalyptic number.
145892186680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
145892186680 is an abundant number, since it is smaller than the sum of its proper divisors (182745678920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145892186680 is a wasteful number, since it uses less digits than its factorization.
145892186680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4227183 (or 4227179 counting only the distinct ones).
The product of its (nonzero) digits is 6635520, while the sum is 58.
The spelling of 145892186680 in words is "one hundred forty-five billion, eight hundred ninety-two million, one hundred eighty-six thousand, six hundred eighty".
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