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144261433 = 1934721881
BaseRepresentation
bin10001001100101…
…00000100111001
3101001110020111001
420212110010321
5243412331213
622152005001
73401126161
oct1046240471
9331406431
10144261433
1174482828
1240390761
1323b6cbc4
14152335a1
15c9e91dd
hex8994139

144261433 has 8 divisors (see below), whose sum is σ = 152298720. Its totient is φ = 136268640.

The previous prime is 144261427. The next prime is 144261443. The reversal of 144261433 is 334162441.

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 144261433 - 217 = 144130361 is a prime.

It is a super-2 number, since 2×1442614332 = 41622722102426978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144261443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4348 + ... + 17533.

It is an arithmetic number, because the mean of its divisors is an integer number (19037340).

Almost surely, 2144261433 is an apocalyptic number.

It is an amenable number.

144261433 is a deficient number, since it is larger than the sum of its proper divisors (8037287).

144261433 is a wasteful number, since it uses less digits than its factorization.

144261433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22247.

The product of its digits is 6912, while the sum is 28.

The square root of 144261433 is about 12010.8881020514. Note that the first 3 decimals coincide. The cubic root of 144261433 is about 524.4652853566.

The spelling of 144261433 in words is "one hundred forty-four million, two hundred sixty-one thousand, four hundred thirty-three".

Divisors: 1 19 347 6593 21881 415739 7592707 144261433