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122313331 = 717473333
BaseRepresentation
bin1110100101001…
…01101001110011
322112011011100101
413102211221303
5222303011311
620045333231
73013434430
oct722455163
9275134311
10122313331
11630518a8
1234b67217
131c456b6a
141235cb87
15ab10ec1
hex74a5a73

122313331 has 4 divisors (see below), whose sum is σ = 139786672. Its totient is φ = 104839992.

The previous prime is 122313307. The next prime is 122313341. The reversal of 122313331 is 133313221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122313331 - 25 = 122313299 is a prime.

It is a super-2 number, since 2×1223133312 = 29921101880631122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122313299 and 122313308.

It is not an unprimeable number, because it can be changed into a prime (122313341) 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, 8736660 + ... + 8736673.

It is an arithmetic number, because the mean of its divisors is an integer number (34946668).

Almost surely, 2122313331 is an apocalyptic number.

122313331 is a deficient number, since it is larger than the sum of its proper divisors (17473341).

122313331 is an equidigital number, since it uses as much as digits as its factorization.

122313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17473340.

The product of its digits is 324, while the sum is 19.

The square root of 122313331 is about 11059.5357497501. The cubic root of 122313331 is about 496.3917990729.

Adding to 122313331 its reverse (133313221), we get a palindrome (255626552).

The spelling of 122313331 in words is "one hundred twenty-two million, three hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 7 17473333 122313331