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144466002 = 23228332
BaseRepresentation
bin10001001110001…
…10000001010010
3101001211122002200
420213012001102
5243440403002
622200224030
73402640452
oct1047060122
9331748080
10144466002
117460249a
124046b016
1323c12055
1415287d62
15ca39b1c
hex89c6052

144466002 has 18 divisors (see below), whose sum is σ = 313120197. Its totient is φ = 48138336.

The previous prime is 144465991. The next prime is 144466009. The reversal of 144466002 is 200664441.

144466002 is a `hidden beast` number, since 14 + 4 + 46 + 600 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142778601 + 1687401 = 11949^2 + 1299^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=8499.

It is not an unprimeable number, because it can be changed into a prime (144466009) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 49578 + ... + 52410.

Almost surely, 2144466002 is an apocalyptic number.

144466002 is an abundant number, since it is smaller than the sum of its proper divisors (168654195).

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

144466002 is an frugal number, since it uses more digits than its factorization.

144466002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674 (or 2838 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 144466002 is about 12019.4010666089. The cubic root of 144466002 is about 524.7130731472.

Multiplying 144466002 by its product of nonzero digits (4608), we get a square (665699337216 = 8159042).

The spelling of 144466002 in words is "one hundred forty-four million, four hundred sixty-six thousand, two".

Divisors: 1 2 3 6 9 18 2833 5666 8499 16998 25497 50994 8025889 16051778 24077667 48155334 72233001 144466002