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144300761 = 1124115441
BaseRepresentation
bin10001001100111…
…01101011011001
3101001112020102122
420212131223121
5243420111021
622152511025
73401351633
oct1046355331
9331466378
10144300761
11744aa330
12403ab475
1323b84a87
1415243a53
15ca05bab
hex899dad9

144300761 has 8 divisors (see below), whose sum is σ = 157513248. Its totient is φ = 131104000.

The previous prime is 144300757. The next prime is 144300769. The reversal of 144300761 is 167003441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144300761 - 22 = 144300757 is a prime.

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 144300761.

It is not an unprimeable number, because it can be changed into a prime (144300769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23801 + ... + 29241.

It is an arithmetic number, because the mean of its divisors is an integer number (19689156).

Almost surely, 2144300761 is an apocalyptic number.

144300761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144300761 is a deficient number, since it is larger than the sum of its proper divisors (13212487).

144300761 is a wasteful number, since it uses less digits than its factorization.

144300761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 144300761 is about 12012.5251716698. The cubic root of 144300761 is about 524.5129402663.

The spelling of 144300761 in words is "one hundred forty-four million, three hundred thousand, seven hundred sixty-one".

Divisors: 1 11 2411 5441 26521 59851 13118251 144300761