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144752663 = 112432647
BaseRepresentation
bin10001010000011…
…00000000010111
3101002101012022202
420220030000113
5244024041123
622210315115
73405243266
oct1050140027
9332335282
10144752663
1174788900
1240588a9b
1323cb2683
14153205dd
15ca94a28
hex8a0c017

144752663 has 18 divisors (see below), whose sum is σ = 163146312. Its totient is φ = 128334360.

The previous prime is 144752651. The next prime is 144752669. The reversal of 144752663 is 366257441.

It is a happy number.

It is not a de Polignac number, because 144752663 - 28 = 144752407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144752669) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223406 + ... + 224052.

It is an arithmetic number, because the mean of its divisors is an integer number (9063684).

Almost surely, 2144752663 is an apocalyptic number.

144752663 is a deficient number, since it is larger than the sum of its proper divisors (18393649).

144752663 is an equidigital number, since it uses as much as digits as its factorization.

144752663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 701 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 144752663 is about 12031.3200855102. The cubic root of 144752663 is about 525.0599030665.

The spelling of 144752663 in words is "one hundred forty-four million, seven hundred fifty-two thousand, six hundred sixty-three".

Divisors: 1 11 43 121 473 647 1849 5203 7117 20339 27821 78287 223729 306031 1196303 3366341 13159333 144752663