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144061287 = 3192527391
BaseRepresentation
bin10001001011000…
…11001101100111
3101001002001221020
420211203031213
5243334430122
622143422223
73366333516
oct1045431547
9331061836
10144061287
1174356417
12402b4973
1323acca86
14151c067d
15c9a9c5c
hex8963367

144061287 has 8 divisors (see below), whose sum is σ = 202191360. Its totient is φ = 90986040.

The previous prime is 144061283. The next prime is 144061289. The reversal of 144061287 is 782160441.

144061287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 144061287 - 22 = 144061283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144061283) 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, 1263639 + ... + 1263752.

It is an arithmetic number, because the mean of its divisors is an integer number (25273920).

Almost surely, 2144061287 is an apocalyptic number.

144061287 is a deficient number, since it is larger than the sum of its proper divisors (58130073).

144061287 is a wasteful number, since it uses less digits than its factorization.

144061287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527413.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 144061287 is about 12002.5533533494. The cubic root of 144061287 is about 524.2226281921. Note that the first 3 decimals are identical.

The spelling of 144061287 in words is "one hundred forty-four million, sixty-one thousand, two hundred eighty-seven".

Divisors: 1 3 19 57 2527391 7582173 48020429 144061287