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143258140 = 2257162907
BaseRepresentation
bin10001000100111…
…11001000011100
3100222120021020001
420202133020130
5243133230030
622114304044
73356450134
oct1042371034
9328507201
10143258140
1173957a63
123bb88024
13238ab33c
1415051ac4
15c89bcca
hex889f21c

143258140 has 12 divisors (see below), whose sum is σ = 300842136. Its totient is φ = 57303248.

The previous prime is 143258131. The next prime is 143258147. The reversal of 143258140 is 41852341.

It is a junction number, because it is equal to n+sod(n) for n = 143258099 and 143258108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143258147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3581434 + ... + 3581473.

It is an arithmetic number, because the mean of its divisors is an integer number (25070178).

Almost surely, 2143258140 is an apocalyptic number.

143258140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143258140 is an abundant number, since it is smaller than the sum of its proper divisors (157583996).

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

143258140 is a wasteful number, since it uses less digits than its factorization.

143258140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7162916 (or 7162914 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 143258140 is about 11969.0492521336. The cubic root of 143258140 is about 523.2466253451.

The spelling of 143258140 in words is "one hundred forty-three million, two hundred fifty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7162907 14325814 28651628 35814535 71629070 143258140