Base | Representation |
---|---|
bin | 1101111010110010… |
… | …11111110011111100 |
3 | 201021202220121200200 |
4 | 12331121133303330 |
5 | 110300432420040 |
6 | 3233254323500 |
7 | 353114404353 |
oct | 67531376374 |
9 | 21252817620 |
10 | 7472545020 |
11 | 3195069746 |
12 | 1546659590 |
13 | 921197595 |
14 | 50c60699a |
15 | 2db05c630 |
hex | 1bd65fcfc |
7472545020 has 72 divisors (see below), whose sum is σ = 22921451280. Its totient is φ = 1970284800.
The previous prime is 7472545019. The next prime is 7472545033. The reversal of 7472545020 is 205452747.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217206 + ... + 249245.
It is an arithmetic number, because the mean of its divisors is an integer number (318353490).
Almost surely, 27472545020 is an apocalyptic number.
It is an amenable number.
7472545020 is an abundant number, since it is smaller than the sum of its proper divisors (15448906260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7472545020 is a wasteful number, since it uses less digits than its factorization.
7472545020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 466555 (or 466550 counting only the distinct ones).
The product of its (nonzero) digits is 78400, while the sum is 36.
The square root of 7472545020 is about 86443.8836471384. The cubic root of 7472545020 is about 1955.0423976345.
Adding to 7472545020 its reverse (205452747), we get a palindrome (7677997767).
The spelling of 7472545020 in words is "seven billion, four hundred seventy-two million, five hundred forty-five thousand, twenty".
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