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144669 = 37832
BaseRepresentation
bin100011010100011101
321100110010
4203110131
514112134
63033433
71141530
oct432435
9240403
10144669
1199768
126b879
1350b05
143aa17
152cce9
hex2351d

144669 has 12 divisors (see below), whose sum is σ = 223136. Its totient is φ = 81672.

The previous prime is 144667. The next prime is 144671. The reversal of 144669 is 966441.

144669 = 812 + 822 + ... + 982.

144669 is nontrivially palindromic in base 13.

144669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144667) and next prime (144671).

It is not a de Polignac number, because 144669 - 21 = 144667 is a prime.

It is a super-2 number, since 2×1446692 = 41858239122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144667) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1702 + ... + 1784.

2144669 is an apocalyptic number.

It is an amenable number.

144669 is a deficient number, since it is larger than the sum of its proper divisors (78467).

144669 is an frugal number, since it uses more digits than its factorization.

144669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 93 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 144669 is about 380.3537826813. The cubic root of 144669 is about 52.4958726914.

The spelling of 144669 in words is "one hundred forty-four thousand, six hundred sixty-nine".

Divisors: 1 3 7 21 83 249 581 1743 6889 20667 48223 144669