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2222972 = 22555743
BaseRepresentation
bin1000011110101101111100
311011221100022
420132231330
51032113342
6115351312
724615653
oct10365574
94157308
102222972
111289174
128b2538
135caa8b
1441c19a
152dd9d2
hex21eb7c

2222972 has 6 divisors (see below), whose sum is σ = 3890208. Its totient is φ = 1111484.

The previous prime is 2222933. The next prime is 2222977. The reversal of 2222972 is 2792222.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277868 + ... + 277875.

It is an arithmetic number, because the mean of its divisors is an integer number (648368).

22222972 is an apocalyptic number.

It is an amenable number.

2222972 is a deficient number, since it is larger than the sum of its proper divisors (1667236).

2222972 is a wasteful number, since it uses less digits than its factorization.

2222972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555747 (or 555745 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 2222972 is about 1490.9634469027. The cubic root of 2222972 is about 130.5102627925.

The spelling of 2222972 in words is "two million, two hundred twenty-two thousand, nine hundred seventy-two".

Divisors: 1 2 4 555743 1111486 2222972