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7122 = 231187
BaseRepresentation
bin1101111010010
3100202210
41233102
5211442
652550
726523
oct15722
910683
107122
115395
124156
13331b
14284a
15219c
hex1bd2

7122 has 8 divisors (see below), whose sum is σ = 14256. Its totient is φ = 2372.

The previous prime is 7121. The next prime is 7127. The reversal of 7122 is 2217.

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

7122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7098 and 7107.

It is not an unprimeable number, because it can be changed into a prime (7121) 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, 588 + ... + 599.

It is an arithmetic number, because the mean of its divisors is an integer number (1782).

27122 is an apocalyptic number.

7122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7128).

7122 is a wasteful number, since it uses less digits than its factorization.

7122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192.

The product of its digits is 28, while the sum is 12.

The square root of 7122 is about 84.3919427434. The cubic root of 7122 is about 19.2398045747.

Adding to 7122 its reverse (2217), we get a palindrome (9339).

The spelling of 7122 in words is "seven thousand, one hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 3 6 1187 2374 3561 7122