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144013131 = 3261277947
BaseRepresentation
bin10001001010101…
…11011101001011
3101000222121212200
420211113131023
5243331410011
622142411243
73366043233
oct1045273513
9330877780
10144013131
1174323219
1240290b23
1323ab3b92
14151aacc3
15c99a856
hex895774b

144013131 has 24 divisors (see below), whose sum is σ = 212416464. Its totient is φ = 93994560.

The previous prime is 144013081. The next prime is 144013151. The reversal of 144013131 is 131310441.

It is not a de Polignac number, because 144013131 - 211 = 144011083 is a prime.

It is a super-2 number, since 2×1440131312 = 41479563800846322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144013151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151600 + ... + 152546.

It is an arithmetic number, because the mean of its divisors is an integer number (8850686).

Almost surely, 2144013131 is an apocalyptic number.

144013131 is a deficient number, since it is larger than the sum of its proper divisors (68403333).

144013131 is a wasteful number, since it uses less digits than its factorization.

144013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 144013131 is about 12000.5471125278. The cubic root of 144013131 is about 524.1642102813.

Adding to 144013131 its reverse (131310441), we get a palindrome (275323572).

The spelling of 144013131 in words is "one hundred forty-four million, thirteen thousand, one hundred thirty-one".

Divisors: 1 3 9 61 183 277 549 831 947 2493 2841 8523 16897 50691 57767 152073 173301 262319 519903 786957 2360871 16001459 48004377 144013131