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144102311 = 450731973
BaseRepresentation
bin10001001011011…
…01001110100111
3101001011011012122
420211231032213
5243342233221
622144340155
73366564233
oct1045551647
9331134178
10144102311
1174384221
124031465b
1323b15652
14151d15c3
15c9b6eab
hex896d3a7

144102311 has 4 divisors (see below), whose sum is σ = 144138792. Its totient is φ = 144065832.

The previous prime is 144102307. The next prime is 144102317. The reversal of 144102311 is 113201441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144102311 - 22 = 144102307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144102311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144102317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11480 + ... + 20493.

It is an arithmetic number, because the mean of its divisors is an integer number (36034698).

Almost surely, 2144102311 is an apocalyptic number.

144102311 is a deficient number, since it is larger than the sum of its proper divisors (36481).

144102311 is an equidigital number, since it uses as much as digits as its factorization.

144102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36480.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 144102311 is about 12004.2622014016. The cubic root of 144102311 is about 524.2723840252.

Adding to 144102311 its reverse (113201441), we get a palindrome (257303752).

The spelling of 144102311 in words is "one hundred forty-four million, one hundred two thousand, three hundred eleven".

Divisors: 1 4507 31973 144102311