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144544270 = 25134147577
BaseRepresentation
bin10001001110110…
…01001000001110
3101001222121110111
420213121020032
5244000404040
622202030234
73403414603
oct1047311016
9331877414
10144544270
1174656282
12404a837a
1323c3b870
14152a86aa
15ca52dea
hex89d920e

144544270 has 64 divisors (see below), whose sum is σ = 293642496. Its totient is φ = 50872320.

The previous prime is 144544261. The next prime is 144544273. The reversal of 144544270 is 72445441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144544273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250222 + ... + 250798.

It is an arithmetic number, because the mean of its divisors is an integer number (4588164).

Almost surely, 2144544270 is an apocalyptic number.

144544270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144544270 is an abundant number, since it is smaller than the sum of its proper divisors (149098226).

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

144544270 is a wasteful number, since it uses less digits than its factorization.

144544270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 144544270 is about 12022.6565284050. The cubic root of 144544270 is about 524.8078147655.

The spelling of 144544270 in words is "one hundred forty-four million, five hundred forty-four thousand, two hundred seventy".

Divisors: 1 2 5 10 13 26 41 47 65 82 94 130 205 235 410 470 533 577 611 1066 1154 1222 1927 2665 2885 3055 3854 5330 5770 6110 7501 9635 15002 19270 23657 25051 27119 37505 47314 50102 54238 75010 118285 125255 135595 236570 250510 271190 307541 352547 615082 705094 1111879 1537705 1762735 2223758 3075410 3525470 5559395 11118790 14454427 28908854 72272135 144544270