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144323011 = 7316110903
BaseRepresentation
bin10001001101000…
…11000111000011
3101001120100221201
420212203013003
5243421314021
622153202031
73401503540
oct1046430703
9331510851
10144323011
1174515018
1240400317
1323b91c41
141524bbc7
15ca0c591
hex89a31c3

144323011 has 16 divisors (see below), whose sum is σ = 173068288. Its totient is φ = 117741600.

The previous prime is 144323009. The next prime is 144323029. The reversal of 144323011 is 110323441.

It is a cyclic number.

It is not a de Polignac number, because 144323011 - 21 = 144323009 is a prime.

It is a super-2 number, since 2×1443230112 = 41658263008212242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144323011.

It is not an unprimeable number, because it can be changed into a prime (144323071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7786 + ... + 18688.

It is an arithmetic number, because the mean of its divisors is an integer number (10816768).

Almost surely, 2144323011 is an apocalyptic number.

144323011 is a deficient number, since it is larger than the sum of its proper divisors (28745277).

144323011 is a wasteful number, since it uses less digits than its factorization.

144323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 144323011 is about 12013.4512526584. The cubic root of 144323011 is about 524.5398974195.

Adding to 144323011 its reverse (110323441), we get a palindrome (254646452).

The spelling of 144323011 in words is "one hundred forty-four million, three hundred twenty-three thousand, eleven".

Divisors: 1 7 31 61 217 427 1891 10903 13237 76321 337993 665083 2365951 4655581 20617573 144323011