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144311074 = 272155537
BaseRepresentation
bin10001001101000…
…00001100100010
3101001112202120121
420212200030202
5243420423244
622153030454
73401423665
oct1046401442
9331482517
10144311074
1174507056
12403b542a
1323b8968b
14152476dc
15ca08c84
hex89a0322

144311074 has 4 divisors (see below), whose sum is σ = 216466614. Its totient is φ = 72155536.

The previous prime is 144311059. The next prime is 144311093. The reversal of 144311074 is 470113441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470113441 = 767159063.

It can be written as a sum of positive squares in only one way, i.e., 77316849 + 66994225 = 8793^2 + 8185^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36077767 + ... + 36077770.

Almost surely, 2144311074 is an apocalyptic number.

144311074 is a deficient number, since it is larger than the sum of its proper divisors (72155540).

144311074 is an equidigital number, since it uses as much as digits as its factorization.

144311074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72155539.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 144311074 is about 12012.9544242871. The cubic root of 144311074 is about 524.5254354028.

The spelling of 144311074 in words is "one hundred forty-four million, three hundred eleven thousand, seventy-four".

Divisors: 1 2 72155537 144311074