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122442025 = 524897681
BaseRepresentation
bin1110100110001…
…01000100101001
322112101200212211
413103011010221
5222321121100
620052205121
73014511556
oct723050451
9275350784
10122442025
116312a562
12350097a1
131c4a0604
1412393a2d
15ab391ba
hex74c5129

122442025 has 6 divisors (see below), whose sum is σ = 151828142. Its totient is φ = 97953600.

The previous prime is 122442013. The next prime is 122442037. The reversal of 122442025 is 520244221.

It is an interprime number because it is at equal distance from previous prime (122442013) and next prime (122442037).

It can be written as a sum of positive squares in 3 ways, for example, as 29929 + 122412096 = 173^2 + 11064^2 .

It is not a de Polignac number, because 122442025 - 213 = 122433833 is a prime.

It is a super-2 number, since 2×1224420252 = 29984098972201250, 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 = 122441987 and 122442005.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2448816 + ... + 2448865.

Almost surely, 2122442025 is an apocalyptic number.

It is an amenable number.

122442025 is a deficient number, since it is larger than the sum of its proper divisors (29386117).

122442025 is an equidigital number, since it uses as much as digits as its factorization.

122442025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897691 (or 4897686 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 122442025 is about 11065.3524571068. The cubic root of 122442025 is about 496.5658336710.

Adding to 122442025 its reverse (520244221), we get a palindrome (642686246).

The spelling of 122442025 in words is "one hundred twenty-two million, four hundred forty-two thousand, twenty-five".

Divisors: 1 5 25 4897681 24488405 122442025