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144886801 = 1767712589
BaseRepresentation
bin10001010001011…
…00110000010001
3101002122000022211
420220230300101
5244042334201
622213232121
73406342333
oct1050546021
9332560284
10144886801
117486a664
1240632641
132402b747
1415357453
15cabe651
hex8a2cc11

144886801 has 8 divisors (see below), whose sum is σ = 153648360. Its totient is φ = 136151808.

The previous prime is 144886787. The next prime is 144886811. The reversal of 144886801 is 108688441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52707600 + 92179201 = 7260^2 + 9601^2 .

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 144886801 - 25 = 144886769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144886811) 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, 5215 + ... + 17803.

It is an arithmetic number, because the mean of its divisors is an integer number (19206045).

Almost surely, 2144886801 is an apocalyptic number.

It is an amenable number.

144886801 is a deficient number, since it is larger than the sum of its proper divisors (8761559).

144886801 is a wasteful number, since it uses less digits than its factorization.

144886801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13283.

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 144886801 is about 12036.8933284299. The cubic root of 144886801 is about 525.2220388083. Note that the first 3 decimals are identical.

The spelling of 144886801 in words is "one hundred forty-four million, eight hundred eighty-six thousand, eight hundred one".

Divisors: 1 17 677 11509 12589 214013 8522753 144886801