Base | Representation |
---|---|
bin | 1111001011000… |
… | …01000100010000 |
3 | 22212111020212021 |
4 | 13211201010100 |
5 | 230040302110 |
6 | 20343541224 |
7 | 3103551646 |
oct | 745410420 |
9 | 285436767 |
10 | 127275280 |
11 | 65930890 |
12 | 3675a814 |
13 | 204a3522 |
14 | 12c91196 |
15 | b2912da |
hex | 7961110 |
127275280 has 80 divisors (see below), whose sum is σ = 328246848. Its totient is φ = 45504000.
The previous prime is 127275263. The next prime is 127275283. The reversal of 127275280 is 82572721.
It is a tau number, because it is divible by the number of its divisors (80).
It is not an unprimeable number, because it can be changed into a prime (127275283) 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, 52495 + ... + 54865.
Almost surely, 2127275280 is an apocalyptic number.
127275280 is a gapful number since it is divisible by the number (10) 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 127275280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164123424).
127275280 is an abundant number, since it is smaller than the sum of its proper divisors (200971568).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127275280 is a wasteful number, since it uses less digits than its factorization.
127275280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2456 (or 2450 counting only the distinct ones).
The product of its (nonzero) digits is 15680, while the sum is 34.
The square root of 127275280 is about 11281.6346333322. The cubic root of 127275280 is about 503.0154838210.
The spelling of 127275280 in words is "one hundred twenty-seven million, two hundred seventy-five thousand, two hundred eighty".
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