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144340037 = 191755707
BaseRepresentation
bin10001001101001…
…11010001000101
3101001121020022022
420212213101011
5243422340122
622153412525
73401604302
oct1046472105
9331536268
10144340037
1174526896
124040a145
1323b9990a
14152540a9
15ca12642
hex89a7445

144340037 has 4 divisors (see below), whose sum is σ = 145095936. Its totient is φ = 143584140.

The previous prime is 144340033. The next prime is 144340039. The reversal of 144340037 is 730043441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144340037 - 22 = 144340033 is a prime.

It is a super-2 number, since 2×1443400372 = 41668092562322738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144339988 and 144340015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144340033) 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, 377663 + ... + 378044.

It is an arithmetic number, because the mean of its divisors is an integer number (36273984).

Almost surely, 2144340037 is an apocalyptic number.

It is an amenable number.

144340037 is a deficient number, since it is larger than the sum of its proper divisors (755899).

144340037 is an equidigital number, since it uses as much as digits as its factorization.

144340037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755898.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 144340037 is about 12014.1598541055. The cubic root of 144340037 is about 524.5605235254.

Adding to 144340037 its reverse (730043441), we get a palindrome (874383478).

The spelling of 144340037 in words is "one hundred forty-four million, three hundred forty thousand, thirty-seven".

Divisors: 1 191 755707 144340037