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144253270 = 25713115731
BaseRepresentation
bin10001001100100…
…10000101010110
3101001102211021201
420212102011112
5243412101040
622151503114
73401063320
oct1046220526
9331384251
10144253270
1174477687
1240387a9a
1323b69285
1415230610
15c9e6a9a
hex8992156

144253270 has 32 divisors (see below), whose sum is σ = 299033856. Its totient is φ = 49077600.

The previous prime is 144253237. The next prime is 144253271. The reversal of 144253270 is 72352441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144253271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305 + ... + 17035.

It is an arithmetic number, because the mean of its divisors is an integer number (9344808).

Almost surely, 2144253270 is an apocalyptic number.

144253270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144253270 is an abundant number, since it is smaller than the sum of its proper divisors (154780586).

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

144253270 is a wasteful number, since it uses less digits than its factorization.

144253270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15876.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 144253270 is about 12010.5482805740. The cubic root of 144253270 is about 524.4553929209.

The spelling of 144253270 in words is "one hundred forty-four million, two hundred fifty-three thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 131 262 655 917 1310 1834 4585 9170 15731 31462 78655 110117 157310 220234 550585 1101170 2060761 4121522 10303805 14425327 20607610 28850654 72126635 144253270