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144449354 = 2721473973
BaseRepresentation
bin10001001110000…
…01111101001010
3101001210210021002
420213001331022
5243434334404
622200015002
73402541100
oct1047017512
9331723232
10144449354
11745a0a35
1240461462
1323c075ba
1415281c70
15ca34c1e
hex89c1f4a

144449354 has 12 divisors (see below), whose sum is σ = 252049554. Its totient is φ = 61906824.

The previous prime is 144449353. The next prime is 144449359. The reversal of 144449354 is 453944441.

It can be written as a sum of positive squares in only one way, i.e., 119399329 + 25050025 = 10927^2 + 5005^2 .

It is not an unprimeable number, because it can be changed into a prime (144449351) 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 in 5 ways as a sum of consecutive naturals, for example, 736889 + ... + 737084.

Almost surely, 2144449354 is an apocalyptic number.

144449354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

144449354 is a deficient number, since it is larger than the sum of its proper divisors (107600200).

144449354 is a wasteful number, since it uses less digits than its factorization.

144449354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473989 (or 1473982 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 144449354 is about 12018.7084996683. The cubic root of 144449354 is about 524.6929167120.

The spelling of 144449354 in words is "one hundred forty-four million, four hundred forty-nine thousand, three hundred fifty-four".

Divisors: 1 2 7 14 49 98 1473973 2947946 10317811 20635622 72224677 144449354