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144995765 = 5139208627
BaseRepresentation
bin10001010010001…
…11010110110101
3101002211112210112
420221013112311
5244104331030
622215432405
73410305115
oct1051072665
9332745715
10144995765
1174934512
1240685705
1324069215
1415385045
15cae1a95
hex8a475b5

144995765 has 8 divisors (see below), whose sum is σ = 175247520. Its totient is φ = 115161552.

The previous prime is 144995761. The next prime is 144995777. The reversal of 144995765 is 567599441.

144995765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144995765 - 22 = 144995761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144995761) 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, 103619 + ... + 105008.

It is an arithmetic number, because the mean of its divisors is an integer number (21905940).

Almost surely, 2144995765 is an apocalyptic number.

It is an amenable number.

144995765 is a deficient number, since it is larger than the sum of its proper divisors (30251755).

144995765 is a wasteful number, since it uses less digits than its factorization.

144995765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208771.

The product of its digits is 1360800, while the sum is 50.

The square root of 144995765 is about 12041.4187287047. The cubic root of 144995765 is about 525.3536724996.

The spelling of 144995765 in words is "one hundred forty-four million, nine hundred ninety-five thousand, seven hundred sixty-five".

Divisors: 1 5 139 695 208627 1043135 28999153 144995765