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144031525 = 52111373823
BaseRepresentation
bin10001001010110…
…11111100100101
3101001000120002221
420211123330211
5243333002100
622143032341
73366150661
oct1045337445
9331016087
10144031525
1174336020
124029b6b1
1323abc371
14151b38a1
15c9a101a
hex895bf25

144031525 has 24 divisors (see below), whose sum is σ = 196308864. Its totient is φ = 103958400.

The previous prime is 144031519. The next prime is 144031541. The reversal of 144031525 is 525130441.

It is a happy number.

It is not a de Polignac number, because 144031525 - 27 = 144031397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144031525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35764 + ... + 39586.

It is an arithmetic number, because the mean of its divisors is an integer number (8179536).

Almost surely, 2144031525 is an apocalyptic number.

It is an amenable number.

144031525 is a deficient number, since it is larger than the sum of its proper divisors (52277339).

144031525 is a wasteful number, since it uses less digits than its factorization.

144031525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981 (or 3976 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 144031525 is about 12001.3134697832. The cubic root of 144031525 is about 524.1865255289.

Adding to 144031525 its reverse (525130441), we get a palindrome (669161966).

The spelling of 144031525 in words is "one hundred forty-four million, thirty-one thousand, five hundred twenty-five".

Divisors: 1 5 11 25 55 137 275 685 1507 3425 3823 7535 19115 37675 42053 95575 210265 523751 1051325 2618755 5761261 13093775 28806305 144031525