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144414437 = 151956387
BaseRepresentation
bin10001001101110…
…01011011100101
3101001202000100212
420212321123211
5243432230222
622155145205
73402334226
oct1046713345
9331660325
10144414437
1174577782
1240445205
1323bc473b
141527324d
15ca296e2
hex89b96e5

144414437 has 4 divisors (see below), whose sum is σ = 145370976. Its totient is φ = 143457900.

The previous prime is 144414407. The next prime is 144414443. The reversal of 144414437 is 734414441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 734414441 = 6112039581.

It is a cyclic number.

It is not a de Polignac number, because 144414437 - 224 = 127637221 is a prime.

It is a super-2 number, since 2×1444144372 = 41711059228053938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144414407) 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, 478043 + ... + 478344.

It is an arithmetic number, because the mean of its divisors is an integer number (36342744).

Almost surely, 2144414437 is an apocalyptic number.

It is an amenable number.

144414437 is a deficient number, since it is larger than the sum of its proper divisors (956539).

144414437 is an equidigital number, since it uses as much as digits as its factorization.

144414437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956538.

The product of its digits is 21504, while the sum is 32.

The square root of 144414437 is about 12017.2558015547. The cubic root of 144414437 is about 524.6506361976.

Adding to 144414437 its reverse (734414441), we get a palindrome (878828878).

It can be divided in two parts, 14441443 and 7, that multiplied together give a palindrome (101090101).

The spelling of 144414437 in words is "one hundred forty-four million, four hundred fourteen thousand, four hundred thirty-seven".

Divisors: 1 151 956387 144414437