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143427084 = 22311952257
BaseRepresentation
bin10001000110010…
…00011000001100
3100222212211222020
420203020120030
5243204131314
622122050140
73361052523
oct1043103014
9328784866
10143427084
1173a62989
1240049950
132393a1c8
14150974ba
15c8d1da9
hex88c860c

143427084 has 12 divisors (see below), whose sum is σ = 334663224. Its totient is φ = 47809024.

The previous prime is 143427073. The next prime is 143427091. The reversal of 143427084 is 480724341.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5976117 + ... + 5976140.

It is an arithmetic number, because the mean of its divisors is an integer number (27888602).

Almost surely, 2143427084 is an apocalyptic number.

It is an amenable number.

143427084 is an abundant number, since it is smaller than the sum of its proper divisors (191236140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143427084 is a wasteful number, since it uses less digits than its factorization.

143427084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11952264 (or 11952262 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 143427084 is about 11976.1047089611. The cubic root of 143427084 is about 523.4522323956.

Subtracting from 143427084 its product of nonzero digits (21504), we obtain a triangular number (143405580 = T16935).

The spelling of 143427084 in words is "one hundred forty-three million, four hundred twenty-seven thousand, eighty-four".

Divisors: 1 2 3 4 6 12 11952257 23904514 35856771 47809028 71713542 143427084