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122310025 = 524892401
BaseRepresentation
bin1110100101001…
…00110110001001
322112010222210221
413102210312021
5222302410100
620045310041
73013421665
oct722446611
9275128727
10122310025
116304a372
1234b65321
131c4554c6
141235b8a5
15ab1001a
hex74a4d89

122310025 has 6 divisors (see below), whose sum is σ = 151664462. Its totient is φ = 97848000.

The previous prime is 122309989. The next prime is 122310029. The reversal of 122310025 is 520013221.

It can be written as a sum of positive squares in 3 ways, for example, as 1485961 + 120824064 = 1219^2 + 10992^2 .

It is not a de Polignac number, because 122310025 - 215 = 122277257 is a prime.

It is a super-3 number, since 3×1223100253 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122309990 and 122310008.

It is not an unprimeable number, because it can be changed into a prime (122310029) 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 5 ways as a sum of consecutive naturals, for example, 2446176 + ... + 2446225.

Almost surely, 2122310025 is an apocalyptic number.

It is an amenable number.

122310025 is a deficient number, since it is larger than the sum of its proper divisors (29354437).

122310025 is an equidigital number, since it uses as much as digits as its factorization.

122310025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892411 (or 4892406 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 122310025 is about 11059.3862849617. The cubic root of 122310025 is about 496.3873267175.

Adding to 122310025 its reverse (520013221), we get a palindrome (642323246).

The spelling of 122310025 in words is "one hundred twenty-two million, three hundred ten thousand, twenty-five".

Divisors: 1 5 25 4892401 24462005 122310025