Base | Representation |
---|---|
bin | 1111001010101… |
… | …11101001110000 |
3 | 22212102021222010 |
4 | 13211113221300 |
5 | 230033033340 |
6 | 20343042520 |
7 | 3103331352 |
oct | 745275160 |
9 | 285367863 |
10 | 127236720 |
11 | 65904916 |
12 | 36740440 |
13 | 2048bb00 |
14 | 12c810d2 |
15 | b284b80 |
hex | 7957a70 |
127236720 has 120 divisors (see below), whose sum is σ = 427244976. Its totient is φ = 31309824.
The previous prime is 127236701. The next prime is 127236761. The reversal of 127236720 is 27632721.
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (30).
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, 38992 + ... + 42128.
Almost surely, 2127236720 is an apocalyptic number.
127236720 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 127236720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213622488).
127236720 is an abundant number, since it is smaller than the sum of its proper divisors (300008256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127236720 is a wasteful number, since it uses less digits than its factorization.
127236720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3179 (or 3160 counting only the distinct ones).
The product of its (nonzero) digits is 7056, while the sum is 30.
The square root of 127236720 is about 11279.9255316691. The cubic root of 127236720 is about 502.9646799357.
The spelling of 127236720 in words is "one hundred twenty-seven million, two hundred thirty-six thousand, seven hundred twenty".
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