Base | Representation |
---|---|
bin | 100011110010011… |
… | …1011101010110000 |
3 | 10002200122012121111 |
4 | 1013210323222300 |
5 | 4424410121140 |
6 | 315054403104 |
7 | 41521113664 |
oct | 10744735260 |
9 | 3080565544 |
10 | 1200863920 |
11 | 566946923 |
12 | 296200494 |
13 | 161a37789 |
14 | b56b68a4 |
15 | 7065b7ea |
hex | 4793bab0 |
1200863920 has 80 divisors (see below), whose sum is σ = 2841818112. Its totient is φ = 471847680.
The previous prime is 1200863893. The next prime is 1200863921. The reversal of 1200863920 is 293680021.
It is a tau number, because it is divible by the number of its divisors (80).
It is not an unprimeable number, because it can be changed into a prime (1200863921) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480315 + ... + 1481125.
Almost surely, 21200863920 is an apocalyptic number.
1200863920 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 1200863920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420909056).
1200863920 is an abundant number, since it is smaller than the sum of its proper divisors (1640954192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1200863920 is a wasteful number, since it uses less digits than its factorization.
1200863920 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1130 (or 1124 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 31.
The square root of 1200863920 is about 34653.4835189768. The cubic root of 1200863920 is about 1062.9135224512.
The spelling of 1200863920 in words is "one billion, two hundred million, eight hundred sixty-three thousand, nine hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •