Base | Representation |
---|---|
bin | 1111001110010… |
… | …00110010110000 |
3 | 22220021211122222 |
4 | 13213020302300 |
5 | 230142401034 |
6 | 20401020212 |
7 | 3110301425 |
oct | 747106260 |
9 | 286254588 |
10 | 127700144 |
11 | 660a1010 |
12 | 36924668 |
13 | 205c1a20 |
14 | 12d61d4c |
15 | b32712e |
hex | 79c8cb0 |
127700144 has 40 divisors (see below), whose sum is σ = 290679312. Its totient is φ = 53579520.
The previous prime is 127700143. The next prime is 127700179. The reversal of 127700144 is 441007721.
It is a Harshad number since it is a multiple of its sum of digits (26).
It is not an unprimeable number, because it can be changed into a prime (127700143) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25619 + ... + 30194.
Almost surely, 2127700144 is an apocalyptic number.
It is an amenable number.
127700144 is an abundant number, since it is smaller than the sum of its proper divisors (162979168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127700144 is a wasteful number, since it uses less digits than its factorization.
127700144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55845 (or 55839 counting only the distinct ones).
The product of its (nonzero) digits is 1568, while the sum is 26.
The square root of 127700144 is about 11300.4488406435. The cubic root of 127700144 is about 503.5745759148.
Adding to 127700144 its reverse (441007721), we get a palindrome (568707865).
The spelling of 127700144 in words is "one hundred twenty-seven million, seven hundred thousand, one hundred forty-four".
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