Base | Representation |
---|---|
bin | 1001001001000010010… |
… | …0011010100101000000 |
3 | 120000100200112102010000 |
4 | 2102100210122211000 |
5 | 10033111314202213 |
6 | 200051204040000 |
7 | 14226463264332 |
oct | 2222044324500 |
9 | 500320472100 |
10 | 157044287808 |
11 | 60669451911 |
12 | 26529993000 |
13 | 11a69ac07b5 |
14 | 785b159452 |
15 | 4142245c73 |
hex | 249091a940 |
157044287808 has 420 divisors, whose sum is σ = 507355888512. Its totient is φ = 47975431680.
The previous prime is 157044287797. The next prime is 157044287831. The reversal of 157044287808 is 808782440751.
157044287808 is a `hidden beast` number, since 1 + 570 + 44 + 28 + 7 + 8 + 0 + 8 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 58012791 + ... + 58015497.
Almost surely, 2157044287808 is an apocalyptic number.
157044287808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 157044287808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253677944256).
157044287808 is an abundant number, since it is smaller than the sum of its proper divisors (350311600704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157044287808 is a wasteful number, since it uses less digits than its factorization.
157044287808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2800 (or 2762 counting only the distinct ones).
The product of its (nonzero) digits is 4014080, while the sum is 54.
The spelling of 157044287808 in words is "one hundred fifty-seven billion, forty-four million, two hundred eighty-seven thousand, eight hundred eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.650 sec. • engine limits •