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122412245 = 553461933
BaseRepresentation
bin1110100101111…
…01110011010101
322112100012000212
413102331303111
5222314142440
620051415205
73014326004
oct722756325
9275305025
10122412245
116310a14a
1234bb4505
131c48cba7
1412386c3b
15ab30465
hex74bdcd5

122412245 has 8 divisors (see below), whose sum is σ = 149666616. Its totient is φ = 96081856.

The previous prime is 122412229. The next prime is 122412253. The reversal of 122412245 is 542214221.

It can be written as a sum of positive squares in 4 ways, for example, as 13126129 + 109286116 = 3623^2 + 10454^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122412245 - 24 = 122412229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122412245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230702 + ... + 231231.

It is an arithmetic number, because the mean of its divisors is an integer number (18708327).

Almost surely, 2122412245 is an apocalyptic number.

It is an amenable number.

122412245 is a deficient number, since it is larger than the sum of its proper divisors (27254371).

122412245 is an equidigital number, since it uses as much as digits as its factorization.

122412245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461991.

The product of its digits is 1280, while the sum is 23.

The square root of 122412245 is about 11064.0067335482. The cubic root of 122412245 is about 496.5255726317.

Adding to 122412245 its reverse (542214221), we get a palindrome (664626466).

The spelling of 122412245 in words is "one hundred twenty-two million, four hundred twelve thousand, two hundred forty-five".

Divisors: 1 5 53 265 461933 2309665 24482449 122412245