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80143365 = 355342891
BaseRepresentation
bin1001100011011…
…10010000000101
312120210201000210
410301232100011
5131004041430
611541430033
71662131061
oct461562005
9176721023
1080143365
1141269995
1222a0b319
13137b0713
14a902aa1
1570812b0
hex4c6e405

80143365 has 8 divisors (see below), whose sum is σ = 128229408. Its totient is φ = 42743120.

The previous prime is 80143363. The next prime is 80143381. The reversal of 80143365 is 56334108.

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

It is not a de Polignac number, because 80143365 - 21 = 80143363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80143363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671431 + ... + 2671460.

It is an arithmetic number, because the mean of its divisors is an integer number (16028676).

Almost surely, 280143365 is an apocalyptic number.

It is an amenable number.

80143365 is a deficient number, since it is larger than the sum of its proper divisors (48086043).

80143365 is a wasteful number, since it uses less digits than its factorization.

80143365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342899.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 80143365 is about 8952.2826697999. The cubic root of 80143365 is about 431.1441765128.

It can be divided in two parts, 80143 and 365, that added together give a palindrome (80508).

The spelling of 80143365 in words is "eighty million, one hundred forty-three thousand, three hundred sixty-five".

Divisors: 1 3 5 15 5342891 16028673 26714455 80143365