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143318344 = 23131378061
BaseRepresentation
bin10001000101011…
…01110101001000
3100222200022210211
420202231311020
5243142141334
622115450504
73360120511
oct1042556510
9328608724
10143318344
1173999214
123bbb6a34
13238cc870
1415069a08
15c8aea64
hex88add48

143318344 has 16 divisors (see below), whose sum is σ = 289393020. Its totient is φ = 66146880.

The previous prime is 143318339. The next prime is 143318389. The reversal of 143318344 is 443813341.

It can be written as a sum of positive squares in 2 ways, for example, as 127012900 + 16305444 = 11270^2 + 4038^2 .

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, 688927 + ... + 689134.

Almost surely, 2143318344 is an apocalyptic number.

It is an amenable number.

143318344 is an abundant number, since it is smaller than the sum of its proper divisors (146074676).

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

143318344 is a wasteful number, since it uses less digits than its factorization.

143318344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378080 (or 1378076 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 143318344 is about 11971.5639746860. The cubic root of 143318344 is about 523.3199129271.

The spelling of 143318344 in words is "one hundred forty-three million, three hundred eighteen thousand, three hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 1378061 2756122 5512244 11024488 17914793 35829586 71659172 143318344