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144449248 = 2519237581
BaseRepresentation
bin10001001110000…
…01111011100000
3101001210210010011
420213001323200
5243434333443
622200014304
73402540556
oct1047017340
9331723104
10144449248
11745a0949
1240461394
1323c07538
1415281bd6
15ca34b9d
hex89c1ee0

144449248 has 24 divisors (see below), whose sum is σ = 299353320. Its totient is φ = 68423040.

The previous prime is 144449183. The next prime is 144449297. The reversal of 144449248 is 842944441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 144449248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118183 + ... + 119398.

It is an arithmetic number, because the mean of its divisors is an integer number (12473055).

Almost surely, 2144449248 is an apocalyptic number.

It is an amenable number.

144449248 is an abundant number, since it is smaller than the sum of its proper divisors (154904072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144449248 is a wasteful number, since it uses less digits than its factorization.

144449248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237610 (or 237602 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 144449248 is about 12018.7040898759. The cubic root of 144449248 is about 524.6927883684.

The spelling of 144449248 in words is "one hundred forty-four million, four hundred forty-nine thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 237581 475162 950324 1900648 3801296 4514039 7602592 9028078 18056156 36112312 72224624 144449248