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144750081 = 376892861
BaseRepresentation
bin10001010000010…
…11011000000001
3101002101001210010
420220023120001
5244024000311
622210255133
73405232620
oct1050133001
9332331703
10144750081
1174786973
12405874a9
1323cb1448
141531d6b7
15ca93da6
hex8a0b601

144750081 has 8 divisors (see below), whose sum is σ = 220571584. Its totient is φ = 82714320.

The previous prime is 144750079. The next prime is 144750101. The reversal of 144750081 is 180057441.

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

It is not a de Polignac number, because 144750081 - 21 = 144750079 is a prime.

It is a super-2 number, since 2×1447500812 = 41905171899013122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144750061) 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, 3446410 + ... + 3446451.

It is an arithmetic number, because the mean of its divisors is an integer number (27571448).

Almost surely, 2144750081 is an apocalyptic number.

It is an amenable number.

144750081 is a deficient number, since it is larger than the sum of its proper divisors (75821503).

144750081 is an equidigital number, since it uses as much as digits as its factorization.

144750081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6892871.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 144750081 is about 12031.2127817606. The cubic root of 144750081 is about 525.0567811602.

The spelling of 144750081 in words is "one hundred forty-four million, seven hundred fifty thousand, eighty-one".

Divisors: 1 3 7 21 6892861 20678583 48250027 144750081