Base | Representation |
---|---|
bin | 1000011100010110101… |
… | …0000101111011000111 |
3 | 111212101210021211211001 |
4 | 2013011222011323013 |
5 | 4334030304113011 |
6 | 150345102154131 |
7 | 13323322136431 |
oct | 2070552057307 |
9 | 455353254731 |
10 | 145050066631 |
11 | 56573a87a28 |
12 | 24140b82947 |
13 | 108a7c003c2 |
14 | 7040203651 |
15 | 3b8e2677c1 |
hex | 21c5a85ec7 |
145050066631 has 4 divisors (see below), whose sum is σ = 145106929264. Its totient is φ = 144993204000.
The previous prime is 145050066619. The next prime is 145050066659. The reversal of 145050066631 is 136660050541.
145050066631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 145050066631 - 229 = 144513195719 is a prime.
It is a super-2 number, since 2×1450500666312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145050066691) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28427490 + ... + 28432591.
It is an arithmetic number, because the mean of its divisors is an integer number (36276732316).
Almost surely, 2145050066631 is an apocalyptic number.
145050066631 is a deficient number, since it is larger than the sum of its proper divisors (56862633).
145050066631 is an equidigital number, since it uses as much as digits as its factorization.
145050066631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56862632.
The product of its (nonzero) digits is 64800, while the sum is 37.
The spelling of 145050066631 in words is "one hundred forty-five billion, fifty million, sixty-six thousand, six hundred thirty-one".
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