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144396827 = 1721926297
BaseRepresentation
bin10001001101101…
…01001000011011
3101001201010012122
420212311020123
5243431144302
622154531455
73402232001
oct1046651033
9331633178
10144396827
1174565523
1240436b8b
1323bb9713
141526aa71
15ca243a2
hex89b521b

144396827 has 12 divisors (see below), whose sum is σ = 161469720. Its totient is φ = 128745216.

The previous prime is 144396823. The next prime is 144396839. The reversal of 144396827 is 728693441.

It is not a de Polignac number, because 144396827 - 22 = 144396823 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144396823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7658 + ... + 18639.

It is an arithmetic number, because the mean of its divisors is an integer number (13455810).

Almost surely, 2144396827 is an apocalyptic number.

144396827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144396827 is a deficient number, since it is larger than the sum of its proper divisors (17072893).

144396827 is a wasteful number, since it uses less digits than its factorization.

144396827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26350 (or 26333 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 144396827 is about 12016.5230828223. The cubic root of 144396827 is about 524.6293099058.

The spelling of 144396827 in words is "one hundred forty-four million, three hundred ninety-six thousand, eight hundred twenty-seven".

Divisors: 1 17 19 289 323 5491 26297 447049 499643 7599833 8493931 144396827