Base | Representation |
---|---|
bin | 10001001000111101… |
… | …00101001101010000 |
3 | 212202022001112101112 |
4 | 20210132211031100 |
5 | 122321143243323 |
6 | 4121033152452 |
7 | 444014060300 |
oct | 104436451520 |
9 | 25668045345 |
10 | 9201931088 |
11 | 39a2283029 |
12 | 194985b728 |
13 | b3856254c |
14 | 63417b600 |
15 | 38ccb8178 |
hex | 2247a5350 |
9201931088 has 120 divisors (see below), whose sum is σ = 22044738600. Its totient is φ = 3710149632.
The previous prime is 9201931087. The next prime is 9201931121. The reversal of 9201931088 is 8801391029.
It can be written as a sum of positive squares in 4 ways, for example, as 798175504 + 8403755584 = 28252^2 + 91672^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9201931087) 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, 3850598 + ... + 3852986.
It is an arithmetic number, because the mean of its divisors is an integer number (183706155).
Almost surely, 29201931088 is an apocalyptic number.
9201931088 is a gapful number since it is divisible by the number (98) 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 9201931088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11022369300).
9201931088 is an abundant number, since it is smaller than the sum of its proper divisors (12842807512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9201931088 is a wasteful number, since it uses less digits than its factorization.
9201931088 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2462 (or 2415 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 41.
The square root of 9201931088 is about 95926.6964301388. The cubic root of 9201931088 is about 2095.5257033857.
The spelling of 9201931088 in words is "nine billion, two hundred one million, nine hundred thirty-one thousand, eighty-eight".
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