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144264361 = 827174443
BaseRepresentation
bin10001001100101…
…00110010101001
3101001110101111111
420212110302221
5243412424421
622152030321
73401140543
oct1046246251
9331411444
10144264361
1174484a4a
12403923a1
1323b71337
1415234693
15c9e9ee1
hex8994ca9

144264361 has 4 divisors (see below), whose sum is σ = 144439632. Its totient is φ = 144089092.

The previous prime is 144264353. The next prime is 144264371. The reversal of 144264361 is 163462441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144264361 - 23 = 144264353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144264301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86395 + ... + 88048.

It is an arithmetic number, because the mean of its divisors is an integer number (36109908).

Almost surely, 2144264361 is an apocalyptic number.

It is an amenable number.

144264361 is a deficient number, since it is larger than the sum of its proper divisors (175271).

144264361 is an equidigital number, since it uses as much as digits as its factorization.

144264361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175270.

The product of its digits is 13824, while the sum is 31.

The square root of 144264361 is about 12011.0099908376. The cubic root of 144264361 is about 524.4688335999.

The spelling of 144264361 in words is "one hundred forty-four million, two hundred sixty-four thousand, three hundred sixty-one".

Divisors: 1 827 174443 144264361