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144525949 = 659219311
BaseRepresentation
bin10001001110101…
…00101001111101
3101001221200022221
420213110221331
5243444312244
622201405341
73403310311
oct1047245175
9331850287
10144525949
1174643537
1240499851
1323c33419
14152a1b41
15ca4c784
hex89d4a7d

144525949 has 4 divisors (see below), whose sum is σ = 144745920. Its totient is φ = 144305980.

The previous prime is 144525947. The next prime is 144525961. The reversal of 144525949 is 949525441.

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 144525949 - 21 = 144525947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144525947) 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, 108997 + ... + 110314.

It is an arithmetic number, because the mean of its divisors is an integer number (36186480).

Almost surely, 2144525949 is an apocalyptic number.

It is an amenable number.

144525949 is a deficient number, since it is larger than the sum of its proper divisors (219971).

144525949 is an equidigital number, since it uses as much as digits as its factorization.

144525949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219970.

The product of its digits is 259200, while the sum is 43.

The square root of 144525949 is about 12021.8945678291. The cubic root of 144525949 is about 524.7856406818.

The spelling of 144525949 in words is "one hundred forty-four million, five hundred twenty-five thousand, nine hundred forty-nine".

Divisors: 1 659 219311 144525949