Base | Representation |
---|---|
bin | 111111101001110101… |
… | …111110000011011110 |
3 | 20112102021100101000100 |
4 | 333221311332003132 |
5 | 2104434010423244 |
6 | 51222025241530 |
7 | 4636502164050 |
oct | 775165760336 |
9 | 215367311010 |
10 | 68347748574 |
11 | 26a93582126 |
12 | 112b56332a6 |
13 | 65a30487a1 |
14 | 34453dd8d0 |
15 | 1ba053eb69 |
hex | fe9d7e0de |
68347748574 has 48 divisors (see below), whose sum is σ = 169604592768. Its totient is φ = 19486095696.
The previous prime is 68347748531. The next prime is 68347748587. The reversal of 68347748574 is 47584774386.
68347748574 is a `hidden beast` number, since 6 + 83 + 4 + 7 + 7 + 485 + 74 = 666.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521932 + ... + 639615.
It is an arithmetic number, because the mean of its divisors is an integer number (3533429016).
Almost surely, 268347748574 is an apocalyptic number.
68347748574 is an abundant number, since it is smaller than the sum of its proper divisors (101256844194).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68347748574 is a wasteful number, since it uses less digits than its factorization.
68347748574 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1162029 (or 1162026 counting only the distinct ones).
The product of its digits is 126443520, while the sum is 63.
The spelling of 68347748574 in words is "sixty-eight billion, three hundred forty-seven million, seven hundred forty-eight thousand, five hundred seventy-four".
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