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144300669 = 3471023409
BaseRepresentation
bin10001001100111…
…01101001111101
3101001112020022020
420212131221331
5243420110134
622152510353
73401351442
oct1046355175
9331466266
10144300669
11744aa257
12403ab3b9
1323b84a16
14152439c9
15ca05b49
hex899da7d

144300669 has 8 divisors (see below), whose sum is σ = 196494720. Its totient is φ = 94153536.

The previous prime is 144300659. The next prime is 144300677. The reversal of 144300669 is 966003441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144300669 - 212 = 144296573 is a prime.

It is a super-2 number, since 2×1443006692 = 41645366147695122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144300659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511564 + ... + 511845.

It is an arithmetic number, because the mean of its divisors is an integer number (24561840).

Almost surely, 2144300669 is an apocalyptic number.

It is an amenable number.

144300669 is a deficient number, since it is larger than the sum of its proper divisors (52194051).

144300669 is a wasteful number, since it uses less digits than its factorization.

144300669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023459.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 144300669 is about 12012.5213423328. The cubic root of 144300669 is about 524.5128287973.

The spelling of 144300669 in words is "one hundred forty-four million, three hundred thousand, six hundred sixty-nine".

Divisors: 1 3 47 141 1023409 3070227 48100223 144300669