Base | Representation |
---|---|
bin | 11010010000111100… |
… | …000001011111011000 |
3 | 2200210102000111001112 |
4 | 122100330001133120 |
5 | 430224033120444 |
6 | 20542223035452 |
7 | 2015600302034 |
oct | 322074013730 |
9 | 80712014045 |
10 | 28201457624 |
11 | 10a61a9557a |
12 | 557073bb88 |
13 | 2875895642 |
14 | 15176311c4 |
15 | b00cac69e |
hex | 690f017d8 |
28201457624 has 64 divisors (see below), whose sum is σ = 57966127200. Its totient is φ = 12803180544.
The previous prime is 28201457623. The next prime is 28201457629. The reversal of 28201457624 is 42675410282.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28201457623) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6888122 + ... + 6892214.
Almost surely, 228201457624 is an apocalyptic number.
It is an amenable number.
28201457624 is an abundant number, since it is smaller than the sum of its proper divisors (29764669576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28201457624 is a wasteful number, since it uses less digits than its factorization.
28201457624 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5892 (or 5888 counting only the distinct ones).
The product of its (nonzero) digits is 215040, while the sum is 41.
The spelling of 28201457624 in words is "twenty-eight billion, two hundred one million, four hundred fifty-seven thousand, six hundred twenty-four".
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