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144935905 = 556351487
BaseRepresentation
bin10001010001110…
…00101111100001
3101002201111200111
420220320233201
5244100422110
622214251321
73406635442
oct1050705741
9332644614
10144935905
11748a3544
1240656b41
1324047bba
141536b2c9
15cacde8a
hex8a38be1

144935905 has 8 divisors (see below), whose sum is σ = 174235392. Its totient is φ = 115740528.

The previous prime is 144935899. The next prime is 144935927. The reversal of 144935905 is 509539441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144935905 - 25 = 144935873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22929 + ... + 28558.

It is an arithmetic number, because the mean of its divisors is an integer number (21779424).

Almost surely, 2144935905 is an apocalyptic number.

It is an amenable number.

144935905 is a deficient number, since it is larger than the sum of its proper divisors (29299487).

144935905 is an equidigital number, since it uses as much as digits as its factorization.

144935905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52055.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 144935905 is about 12038.9328846040. The cubic root of 144935905 is about 525.2813669408.

The spelling of 144935905 in words is "one hundred forty-four million, nine hundred thirty-five thousand, nine hundred five".

Divisors: 1 5 563 2815 51487 257435 28987181 144935905