Base | Representation |
---|---|
bin | 1111001010100… |
… | …00011111111100 |
3 | 22212100210202221 |
4 | 13211100133330 |
5 | 230031114140 |
6 | 20342255124 |
7 | 3103150054 |
oct | 745203774 |
9 | 285323687 |
10 | 127207420 |
11 | 658948aa |
12 | 367274a4 |
13 | 2047b682 |
14 | 12c74564 |
15 | b27b14a |
hex | 79507fc |
127207420 has 48 divisors (see below), whose sum is σ = 278909568. Its totient is φ = 48688640.
The previous prime is 127207417. The next prime is 127207463. The reversal of 127207420 is 24702721.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41997 + ... + 44923.
It is an arithmetic number, because the mean of its divisors is an integer number (5810616).
Almost surely, 2127207420 is an apocalyptic number.
127207420 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 127207420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139454784).
127207420 is an abundant number, since it is smaller than the sum of its proper divisors (151702148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127207420 is a wasteful number, since it uses less digits than its factorization.
127207420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3030 (or 3028 counting only the distinct ones).
The product of its (nonzero) digits is 1568, while the sum is 25.
The square root of 127207420 is about 11278.6266894512. The cubic root of 127207420 is about 502.9260694977.
The spelling of 127207420 in words is "one hundred twenty-seven million, two hundred seven thousand, four hundred twenty".
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