Search a number
-
+
122425321 = 422928949
BaseRepresentation
bin1110100110000…
…00111111101001
322112100211222011
413103000333221
5222320102241
620051555521
73014412064
oct723007751
9275324864
10122425321
1163118a57
1234bbbba1
131c495b25
141238b8db
15ab34281
hex74c0fe9

122425321 has 4 divisors (see below), whose sum is σ = 122458500. Its totient is φ = 122392144.

The previous prime is 122425253. The next prime is 122425337. The reversal of 122425321 is 123524221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123524221 = 811152311.

It can be written as a sum of positive squares in 2 ways, for example, as 121793296 + 632025 = 11036^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 122425321 - 213 = 122417129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122425292 and 122425301.

It is not an unprimeable number, because it can be changed into a prime (122425351) 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, 10246 + ... + 18703.

It is an arithmetic number, because the mean of its divisors is an integer number (30614625).

Almost surely, 2122425321 is an apocalyptic number.

It is an amenable number.

122425321 is a deficient number, since it is larger than the sum of its proper divisors (33179).

122425321 is an equidigital number, since it uses as much as digits as its factorization.

122425321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33178.

The product of its digits is 960, while the sum is 22.

The square root of 122425321 is about 11064.5976429331. The cubic root of 122425321 is about 496.5432515200.

Adding to 122425321 its reverse (123524221), we get a palindrome (245949542).

The spelling of 122425321 in words is "one hundred twenty-two million, four hundred twenty-five thousand, three hundred twenty-one".

Divisors: 1 4229 28949 122425321