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BaseRepresentation
bin100010010000001000100
32010000121100
410102001010
5241403442
640020100
712353136
oct4220104
92100540
101122372
116a7289
12461630
13303b34
14213056
1517284c
hex112044

1122372 has 18 divisors (see below), whose sum is σ = 2837198. Its totient is φ = 374112.

The previous prime is 1122371. The next prime is 1122389. The reversal of 1122372 is 2732211.

Adding to 1122372 its reverse (2732211), we get a palindrome (3854583).

It can be written as a sum of positive squares in only one way, i.e., 1052676 + 69696 = 1026^2 + 264^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1122371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15553 + ... + 15624.

21122372 is an apocalyptic number.

1122372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122372 is an abundant number, since it is smaller than the sum of its proper divisors (1714826).

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

1122372 is a wasteful number, since it uses less digits than its factorization.

1122372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31187 (or 31182 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 1122372 is about 1059.4205963639. The cubic root of 1122372 is about 103.9231434138.

The spelling of 1122372 in words is "one million, one hundred twenty-two thousand, three hundred seventy-two".