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144214251 = 348071417
BaseRepresentation
bin10001001100010…
…00100011101011
3101001100211202120
420212020203223
5243404324001
622151002323
73400541466
oct1046104353
9331324676
10144214251
1174450335
12403693a3
1323b5459c
14152202dd
15c9da236
hex89888eb

144214251 has 4 divisors (see below), whose sum is σ = 192285672. Its totient is φ = 96142832.

The previous prime is 144214229. The next prime is 144214289. The reversal of 144214251 is 152412441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144214251 - 29 = 144213739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144214951) 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, 24035706 + ... + 24035711.

It is an arithmetic number, because the mean of its divisors is an integer number (48071418).

Almost surely, 2144214251 is an apocalyptic number.

144214251 is a deficient number, since it is larger than the sum of its proper divisors (48071421).

144214251 is an equidigital number, since it uses as much as digits as its factorization.

144214251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48071420.

The product of its digits is 1280, while the sum is 24.

The square root of 144214251 is about 12008.9238069029. The cubic root of 144214251 is about 524.4081020915.

Adding to 144214251 its reverse (152412441), we get a palindrome (296626692).

The spelling of 144214251 in words is "one hundred forty-four million, two hundred fourteen thousand, two hundred fifty-one".

Divisors: 1 3 48071417 144214251