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144274 = 21331179
BaseRepresentation
bin100011001110010010
321022220111
4203032102
514104044
63031534
71140424
oct431622
9238814
10144274
1199439
126b5aa
1350890
143a814
152cb34
hex23392

144274 has 16 divisors (see below), whose sum is σ = 241920. Its totient is φ = 64080.

The previous prime is 144271. The next prime is 144289. The reversal of 144274 is 472441.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 45 + 213 + 45 + 76 + 47 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717 + ... + 895.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2144274 is an apocalyptic number.

144274 is a deficient number, since it is larger than the sum of its proper divisors (97646).

144274 is a wasteful number, since it uses less digits than its factorization.

144274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225.

The product of its digits is 896, while the sum is 22.

The square root of 144274 is about 379.8341743445. The cubic root of 144274 is about 52.4480514107.

The spelling of 144274 in words is "one hundred forty-four thousand, two hundred seventy-four", and thus it is an iban number.

Divisors: 1 2 13 26 31 62 179 358 403 806 2327 4654 5549 11098 72137 144274