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143443492 = 22149240677
BaseRepresentation
bin10001000110011…
…00011000100100
3100222220200110221
420203030120210
5243210142432
622122254124
73361151413
oct1043143044
9328820427
10143443492
1173a74245
1240057344
132394480a
141509d47a
15c8d6b97
hex88cc624

143443492 has 12 divisors (see below), whose sum is σ = 252711900. Its totient is φ = 71240096.

The previous prime is 143443457. The next prime is 143443519. The reversal of 143443492 is 294344341.

It can be written as a sum of positive squares in 2 ways, for example, as 65545216 + 77898276 = 8096^2 + 8826^2 .

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, 119743 + ... + 120934.

It is an arithmetic number, because the mean of its divisors is an integer number (21059325).

Almost surely, 2143443492 is an apocalyptic number.

It is an amenable number.

143443492 is a deficient number, since it is larger than the sum of its proper divisors (109268408).

143443492 is a wasteful number, since it uses less digits than its factorization.

143443492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240830 (or 240828 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 143443492 is about 11976.7897201212. The cubic root of 143443492 is about 523.4721925419.

The spelling of 143443492 in words is "one hundred forty-three million, four hundred forty-three thousand, four hundred ninety-two".

Divisors: 1 2 4 149 298 596 240677 481354 962708 35860873 71721746 143443492