Base | Representation |
---|---|
bin | 1001110001010… |
… | …1000110110011 |
3 | 2212010001020200 |
4 | 2130111012303 |
5 | 40442342130 |
6 | 4022210243 |
7 | 1005221613 |
oct | 234250663 |
9 | 85101220 |
10 | 40980915 |
11 | 21150628 |
12 | 11883983 |
13 | 864b181 |
14 | 562aa43 |
15 | 38e7760 |
hex | 27151b3 |
40980915 has 48 divisors (see below), whose sum is σ = 75928320. Its totient is φ = 20401920.
The previous prime is 40980911. The next prime is 40980937. The reversal of 40980915 is 51908904.
40980915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 40980915 - 22 = 40980911 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 40980915.
It is not an unprimeable number, because it can be changed into a prime (40980911) 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 47 ways as a sum of consecutive naturals, for example, 39949 + ... + 40961.
It is an arithmetic number, because the mean of its divisors is an integer number (1581840).
Almost surely, 240980915 is an apocalyptic number.
40980915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
40980915 is a deficient number, since it is larger than the sum of its proper divisors (34947405).
40980915 is a wasteful number, since it uses less digits than its factorization.
40980915 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1084 (or 1081 counting only the distinct ones).
The product of its (nonzero) digits is 12960, while the sum is 36.
The square root of 40980915 is about 6401.6337758419. The cubic root of 40980915 is about 344.7682122986.
The spelling of 40980915 in words is "forty million, nine hundred eighty thousand, nine hundred fifteen".
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