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143471132 = 2275123969
BaseRepresentation
bin10001000110100…
…11001000011100
3100222222002101122
420203103020130
5243212034012
622123030112
73361325120
oct1043231034
9328862348
10143471132
1173a92a92
124006b338
132395427c
14150a9580
15c8dee72
hex88d321c

143471132 has 12 divisors (see below), whose sum is σ = 286942320. Its totient is φ = 61487616.

The previous prime is 143471123. The next prime is 143471137. The reversal of 143471132 is 231174341.

143471132 is an admirable number.

It is a super-2 number, since 2×1434711322 = 41167931434722848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143471137) 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, 2561957 + ... + 2562012.

It is an arithmetic number, because the mean of its divisors is an integer number (23911860).

Almost surely, 2143471132 is an apocalyptic number.

It is an amenable number.

143471132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

143471132 is a wasteful number, since it uses less digits than its factorization.

143471132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123980 (or 5123978 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 143471132 is about 11977.9435630662. The cubic root of 143471132 is about 523.5058128477.

The spelling of 143471132 in words is "one hundred forty-three million, four hundred seventy-one thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 5123969 10247938 20495876 35867783 71735566 143471132