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144887246 = 2732172
BaseRepresentation
bin10001010001011…
…00110111001110
3101002122000221022
420220230313032
5244042342441
622213234142
73406343540
oct1050546716
9332560838
10144887246
117486aa29
1240632952
132402b9ca
1415357690
15cabe84b
hex8a2cdce

144887246 has 12 divisors (see below), whose sum is σ = 248455368. Its totient is φ = 62075232.

The previous prime is 144887233. The next prime is 144887263. The reversal of 144887246 is 642788441.

144887246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 144887197 and 144887206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43430 + ... + 46646.

It is an arithmetic number, because the mean of its divisors is an integer number (20704614).

Almost surely, 2144887246 is an apocalyptic number.

144887246 is a deficient number, since it is larger than the sum of its proper divisors (103568122).

144887246 is an frugal number, since it uses more digits than its factorization.

144887246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6443 (or 3226 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 144887246 is about 12036.9118132518. The cubic root of 144887246 is about 525.2225765236. Note that the first 3 decimals are identical.

The spelling of 144887246 in words is "one hundred forty-four million, eight hundred eighty-seven thousand, two hundred forty-six".

Divisors: 1 2 7 14 3217 6434 22519 45038 10349089 20698178 72443623 144887246