Base | Representation |
---|---|
bin | 1111001001010… |
… | …00000100110000 |
3 | 22212001101122100 |
4 | 13210220010300 |
5 | 230010314330 |
6 | 20334540400 |
7 | 3101560242 |
oct | 744500460 |
9 | 285041570 |
10 | 127041840 |
11 | 65791462 |
12 | 36667700 |
13 | 204211b3 |
14 | 12c30092 |
15 | b247060 |
hex | 7928130 |
127041840 has 120 divisors (see below), whose sum is σ = 431119728. Its totient is φ = 33523200.
The previous prime is 127041839. The next prime is 127041841. The reversal of 127041840 is 48140721.
It is an interprime number because it is at equal distance from previous prime (127041839) and next prime (127041841).
It is a tau number, because it is divible by the number of its divisors (120).
It is a super-2 number, since 2×1270418402 = 32279258221171200, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (127041841) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71847 + ... + 73593.
Almost surely, 2127041840 is an apocalyptic number.
127041840 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 127041840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215559864).
127041840 is an abundant number, since it is smaller than the sum of its proper divisors (304077888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127041840 is a wasteful number, since it uses less digits than its factorization.
127041840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1867 (or 1858 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 27.
The square root of 127041840 is about 11271.2838665345. The cubic root of 127041840 is about 502.7077629024.
The spelling of 127041840 in words is "one hundred twenty-seven million, forty-one thousand, eight hundred forty".
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