Search a number
-
+
144870550 = 25211263401
BaseRepresentation
bin10001010001010…
…00110010010110
3101002121012000221
420220220302112
5244041324200
622213024554
73406244056
oct1050506226
9332535027
10144870550
1174859430
124062515a
1324024226
1415351566
15cab991a
hex8a28c96

144870550 has 24 divisors (see below), whose sum is σ = 293956632. Its totient is φ = 52680000.

The previous prime is 144870541. The next prime is 144870563. The reversal of 144870550 is 55078441.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 131151 + ... + 132250.

It is an arithmetic number, because the mean of its divisors is an integer number (12248193).

Almost surely, 2144870550 is an apocalyptic number.

144870550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144870550 is an abundant number, since it is smaller than the sum of its proper divisors (149086082).

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

144870550 is a wasteful number, since it uses less digits than its factorization.

144870550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263424 (or 263419 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 144870550 is about 12036.2182599021. The cubic root of 144870550 is about 525.2024011730.

The spelling of 144870550 in words is "one hundred forty-four million, eight hundred seventy thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 263401 526802 1317005 2634010 2897411 5794822 6585025 13170050 14487055 28974110 72435275 144870550