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144012887 = 316176157
BaseRepresentation
bin10001001010101…
…11011001010111
3101000222121112122
420211113121113
5243331403022
622142410155
73366042434
oct1045273127
9330877478
10144012887
1174323017
124029095b
1323ab3a35
14151aab8b
15c99a742
hex8957657

144012887 has 8 divisors (see below), whose sum is σ = 151097472. Its totient is φ = 137080800.

The previous prime is 144012881. The next prime is 144012889. The reversal of 144012887 is 788210441.

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 144012887 - 26 = 144012823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144012881) 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, 36188 + ... + 39969.

It is an arithmetic number, because the mean of its divisors is an integer number (18887184).

Almost surely, 2144012887 is an apocalyptic number.

144012887 is a deficient number, since it is larger than the sum of its proper divisors (7084585).

144012887 is an equidigital number, since it uses as much as digits as its factorization.

144012887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76249.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 144012887 is about 12000.5369463204. The cubic root of 144012887 is about 524.1639142524.

The spelling of 144012887 in words is "one hundred forty-four million, twelve thousand, eight hundred eighty-seven".

Divisors: 1 31 61 1891 76157 2360867 4645577 144012887