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144274701 = 348091567
BaseRepresentation
bin10001001100101…
…11010100001101
3101001110220200110
420212113110031
5243413242301
622152150233
73401212644
oct1046272415
9331426613
10144274701
117449179a
1240398379
1323b75c5c
141523835b
15c9ed0d6
hex899750d

144274701 has 4 divisors (see below), whose sum is σ = 192366272. Its totient is φ = 96183132.

The previous prime is 144274693. The next prime is 144274703. The reversal of 144274701 is 107472441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 107472441 = 335824147.

It is not a de Polignac number, because 144274701 - 23 = 144274693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144274703) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24045781 + ... + 24045786.

It is an arithmetic number, because the mean of its divisors is an integer number (48091568).

Almost surely, 2144274701 is an apocalyptic number.

It is an amenable number.

144274701 is a deficient number, since it is larger than the sum of its proper divisors (48091571).

144274701 is an equidigital number, since it uses as much as digits as its factorization.

144274701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48091570.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 144274701 is about 12011.4404215315. The cubic root of 144274701 is about 524.4813635557.

The spelling of 144274701 in words is "one hundred forty-four million, two hundred seventy-four thousand, seven hundred one".

Divisors: 1 3 48091567 144274701