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122232313 = 722494537
BaseRepresentation
bin1110100100100…
…01110111111001
322112000001012201
413102101313321
5222242413223
620043510201
73012646300
oct722216771
9275001181
10122232313
1162aa6a45
1234b28361
131c429018
141233b437
15aae6ead
hex7491df9

122232313 has 6 divisors (see below), whose sum is σ = 142188666. Its totient is φ = 104770512.

The previous prime is 122232311. The next prime is 122232317. The reversal of 122232313 is 313232221.

It can be written as a sum of positive squares in only one way, i.e., 122168809 + 63504 = 11053^2 + 252^2 .

It is not a de Polignac number, because 122232313 - 21 = 122232311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122232311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1247220 + ... + 1247317.

It is an arithmetic number, because the mean of its divisors is an integer number (23698111).

Almost surely, 2122232313 is an apocalyptic number.

It is an amenable number.

122232313 is a deficient number, since it is larger than the sum of its proper divisors (19956353).

122232313 is an equidigital number, since it uses as much as digits as its factorization.

122232313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494551 (or 2494544 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 122232313 is about 11055.8723310284. The cubic root of 122232313 is about 496.2821747354.

Adding to 122232313 its reverse (313232221), we get a palindrome (435464534).

The spelling of 122232313 in words is "one hundred twenty-two million, two hundred thirty-two thousand, three hundred thirteen".

Divisors: 1 7 49 2494537 17461759 122232313