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144722 = 22692
BaseRepresentation
bin100011010101010010
321100112002
4203111102
514112342
63034002
71141634
oct432522
9240462
10144722
1199806
126b902
1350b46
143aa54
152cd32
hex23552

144722 has 6 divisors (see below), whose sum is σ = 217893. Its totient is φ = 72092.

The previous prime is 144719. The next prime is 144731. The reversal of 144722 is 227441.

It can be written as a sum of positive squares in 2 ways, for example, as 108241 + 36481 = 329^2 + 191^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=269.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144694 and 144703.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 404 + ... + 672.

2144722 is an apocalyptic number.

144722 is a deficient number, since it is larger than the sum of its proper divisors (73171).

144722 is an frugal number, since it uses more digits than its factorization.

144722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 271 counting only the distinct ones).

The product of its digits is 448, while the sum is 20.

The square root of 144722 is about 380.4234482784. The cubic root of 144722 is about 52.5022825916.

The spelling of 144722 in words is "one hundred forty-four thousand, seven hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 269 538 72361 144722