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143042872 = 2372554337
BaseRepresentation
bin10001000011010…
…10100100111000
3100222011022221011
420201222210320
5243104332442
622105523304
73354562420
oct1041524470
9328138834
10143042872
1173820255
123baa3534
132383436b
1414dd7480
15c858117
hex886a938

143042872 has 16 divisors (see below), whose sum is σ = 306520560. Its totient is φ = 61304064.

The previous prime is 143042863. The next prime is 143042873. The reversal of 143042872 is 278240341.

It is a super-2 number, since 2×1430428722 = 40922526460016768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143042873) 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 3 ways as a sum of consecutive naturals, for example, 1277113 + ... + 1277224.

It is an arithmetic number, because the mean of its divisors is an integer number (19157535).

Almost surely, 2143042872 is an apocalyptic number.

It is an amenable number.

143042872 is an abundant number, since it is smaller than the sum of its proper divisors (163477688).

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

143042872 is a wasteful number, since it uses less digits than its factorization.

143042872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554350 (or 2554346 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 143042872 is about 11960.0531771393. The cubic root of 143042872 is about 522.9844070385.

The spelling of 143042872 in words is "one hundred forty-three million, forty-two thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 2554337 5108674 10217348 17880359 20434696 35760718 71521436 143042872