Base | Representation |
---|---|
bin | 1000101011111… |
… | …11001110111000 |
3 | 12002010022210212 |
4 | 10111333032320 |
5 | 122123413023 |
6 | 11121530252 |
7 | 1543260254 |
oct | 425771670 |
9 | 162108725 |
10 | 72872888 |
11 | 38153530 |
12 | 204a3988 |
13 | 1213636a |
14 | 996d264 |
15 | 65e6e78 |
hex | 457f3b8 |
72872888 has 16 divisors (see below), whose sum is σ = 149058360. Its totient is φ = 33124000.
The previous prime is 72872887. The next prime is 72872929. The reversal of 72872888 is 88827827.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72872887) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413963 + ... + 414138.
Almost surely, 272872888 is an apocalyptic number.
It is an amenable number.
72872888 is an abundant number, since it is smaller than the sum of its proper divisors (76185472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72872888 is a wasteful number, since it uses less digits than its factorization.
72872888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 828118 (or 828114 counting only the distinct ones).
The product of its digits is 802816, while the sum is 50.
The square root of 72872888 is about 8536.5618371801. The cubic root of 72872888 is about 417.6912014613.
It can be divided in two parts, 728728 and 88, that multiplied together give a square (64128064 = 80082).
The spelling of 72872888 in words is "seventy-two million, eight hundred seventy-two thousand, eight hundred eighty-eight".
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