Base | Representation |
---|---|
bin | 1000011100111100001… |
… | …0001110100011100011 |
3 | 111212210202022121200202 |
4 | 2013033002032203203 |
5 | 4334341042412022 |
6 | 150412442135415 |
7 | 13330242302435 |
oct | 2071702164343 |
9 | 455722277622 |
10 | 145207388387 |
11 | 56644870106 |
12 | 241857b156b |
13 | 10901693ab9 |
14 | 7057076655 |
15 | 3b9ce91592 |
hex | 21cf08e8e3 |
145207388387 has 8 divisors (see below), whose sum is σ = 148602590400. Its totient is φ = 141813017640.
The previous prime is 145207388383. The next prime is 145207388477. The reversal of 145207388387 is 783883702541.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 145207388387 - 22 = 145207388383 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (145207388383) 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, 152864 + ... + 560162.
It is an arithmetic number, because the mean of its divisors is an integer number (18575323800).
Almost surely, 2145207388387 is an apocalyptic number.
145207388387 is a deficient number, since it is larger than the sum of its proper divisors (3395202013).
145207388387 is an equidigital number, since it uses as much as digits as its factorization.
145207388387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 415633.
The product of its (nonzero) digits is 9031680, while the sum is 56.
The spelling of 145207388387 in words is "one hundred forty-five billion, two hundred seven million, three hundred eighty-eight thousand, three hundred eighty-seven".
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