Base | Representation |
---|---|
bin | 1011101111000… |
… | …0110101101001 |
3 | 10102121200110212 |
4 | 2323300311221 |
5 | 100100032334 |
6 | 4514550505 |
7 | 1135241240 |
oct | 273606551 |
9 | 112550425 |
10 | 49220969 |
11 | 25869496 |
12 | 14598435 |
13 | a274945 |
14 | 6773957 |
15 | 44c3ece |
hex | 2ef0d69 |
49220969 has 4 divisors (see below), whose sum is σ = 56252544. Its totient is φ = 42189396.
The previous prime is 49220957. The next prime is 49220981. The reversal of 49220969 is 96902294.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96902294 = 2 ⋅48451147.
It is an interprime number because it is at equal distance from previous prime (49220957) and next prime (49220981).
It is a cyclic number.
It is not a de Polignac number, because 49220969 - 224 = 32443753 is a prime.
It is a super-3 number, since 3×492209693 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (49222969) 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, 3515777 + ... + 3515790.
It is an arithmetic number, because the mean of its divisors is an integer number (14063136).
Almost surely, 249220969 is an apocalyptic number.
It is an amenable number.
49220969 is a deficient number, since it is larger than the sum of its proper divisors (7031575).
49220969 is an equidigital number, since it uses as much as digits as its factorization.
49220969 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7031574.
The product of its (nonzero) digits is 69984, while the sum is 41.
The square root of 49220969 is about 7015.7657458042. The cubic root of 49220969 is about 366.4798095669.
The spelling of 49220969 in words is "forty-nine million, two hundred twenty thousand, nine hundred sixty-nine".
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