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144323013 = 3172829863
BaseRepresentation
bin10001001101000…
…11000111000101
3101001120100221210
420212203013011
5243421314023
622153202033
73401503542
oct1046430705
9331510853
10144323013
117451501a
1240400319
1323b91c43
141524bbc9
15ca0c593
hex89a31c5

144323013 has 8 divisors (see below), whose sum is σ = 203750208. Its totient is φ = 90555584.

The previous prime is 144323009. The next prime is 144323029. The reversal of 144323013 is 310323441.

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 144323013 - 22 = 144323009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144323033) 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, 1414881 + ... + 1414982.

It is an arithmetic number, because the mean of its divisors is an integer number (25468776).

Almost surely, 2144323013 is an apocalyptic number.

It is an amenable number.

144323013 is a deficient number, since it is larger than the sum of its proper divisors (59427195).

144323013 is a wasteful number, since it uses less digits than its factorization.

144323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829883.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 144323013 is about 12013.4513358984. The cubic root of 144323013 is about 524.5398998425.

Adding to 144323013 its reverse (310323441), we get a palindrome (454646454).

The spelling of 144323013 in words is "one hundred forty-four million, three hundred twenty-three thousand, thirteen".

Divisors: 1 3 17 51 2829863 8489589 48107671 144323013