Base | Representation |
---|---|
bin | 1011110110001… |
… | …1100111010000 |
3 | 10110111120100200 |
4 | 2331203213100 |
5 | 100210103323 |
6 | 4533015200 |
7 | 1142236656 |
oct | 275434720 |
9 | 113446320 |
10 | 49691088 |
11 | 2605a717 |
12 | 14784500 |
13 | a3aa915 |
14 | 6856dd6 |
15 | 4568443 |
hex | 2f639d0 |
49691088 has 60 divisors (see below), whose sum is σ = 141370788. Its totient is φ = 16289280.
The previous prime is 49691087. The next prime is 49691113. The reversal of 49691088 is 88019694.
It can be written as a sum of positive squares in 2 ways, for example, as 3069504 + 46621584 = 1752^2 + 6828^2 .
It is a super-3 number, since 3×496910883 (a number of 24 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49691087) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5956 + ... + 11612.
Almost surely, 249691088 is an apocalyptic number.
49691088 is a gapful number since it is divisible by the number (48) 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 49691088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70685394).
49691088 is an abundant number, since it is smaller than the sum of its proper divisors (91679700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49691088 is a wasteful number, since it uses less digits than its factorization.
49691088 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5732 (or 5723 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 45.
The square root of 49691088 is about 7049.1905918339. The cubic root of 49691088 is about 367.6428876548.
The spelling of 49691088 in words is "forty-nine million, six hundred ninety-one thousand, eighty-eight".
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