Base | Representation |
---|---|
bin | 1001001001111100011… |
… | …0111110110110001000 |
3 | 120000222200112222021101 |
4 | 2102133012332312020 |
5 | 10034111241332110 |
6 | 200131320351144 |
7 | 14235514620016 |
oct | 2223706766610 |
9 | 500880488241 |
10 | 157288230280 |
11 | 60784118465 |
12 | 265976154b4 |
13 | 11aa84c1c5c |
14 | 78816d98b6 |
15 | 415888013a |
hex | 249f1bed88 |
157288230280 has 64 divisors (see below), whose sum is σ = 386803745280. Its totient is φ = 57304243200.
The previous prime is 157288230251. The next prime is 157288230289. The reversal of 157288230280 is 82032882751.
It is a super-2 number, since 2×1572882302802 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 157288230280.
It is not an unprimeable number, because it can be changed into a prime (157288230289) 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, 3709666 + ... + 3751825.
It is an arithmetic number, because the mean of its divisors is an integer number (6043808520).
Almost surely, 2157288230280 is an apocalyptic number.
157288230280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
157288230280 is an abundant number, since it is smaller than the sum of its proper divisors (229515515000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157288230280 is a wasteful number, since it uses less digits than its factorization.
157288230280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7461550 (or 7461546 counting only the distinct ones).
The product of its (nonzero) digits is 430080, while the sum is 46.
The spelling of 157288230280 in words is "one hundred fifty-seven billion, two hundred eighty-eight million, two hundred thirty thousand, two hundred eighty".
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