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144352013 = 1319955799
BaseRepresentation
bin10001001101010…
…10001100001101
3101001121211201212
420212222030031
5243423231023
622153544205
73401654231
oct1046521415
9331554655
10144352013
1174534893
1240415065
1323ba21c0
14152585c1
15ca15e78
hex89aa30d

144352013 has 8 divisors (see below), whose sum is σ = 156240000. Its totient is φ = 132576048.

The previous prime is 144352009. The next prime is 144352031. The reversal of 144352013 is 310253441.

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 144352013 - 22 = 144352009 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 144352013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144352003) 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, 25313 + ... + 30486.

It is an arithmetic number, because the mean of its divisors is an integer number (19530000).

Almost surely, 2144352013 is an apocalyptic number.

144352013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144352013 is a deficient number, since it is larger than the sum of its proper divisors (11887987).

144352013 is a wasteful number, since it uses less digits than its factorization.

144352013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56011.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 144352013 is about 12014.6582556476. The cubic root of 144352013 is about 524.5750308495.

The spelling of 144352013 in words is "one hundred forty-four million, three hundred fifty-two thousand, thirteen".

Divisors: 1 13 199 2587 55799 725387 11104001 144352013