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290143143 = 3232238127
BaseRepresentation
bin10001010010110…
…011101110100111
3202012221210120100
4101102303232213
51043234040033
644442435143
710122114243
oct2122635647
9665853510
10290143143
11139861924
1281202ab3
1348159444
142a769423
151a713513
hex114b3ba7

290143143 has 6 divisors (see below), whose sum is σ = 419095664. Its totient is φ = 193428756.

The previous prime is 290143111. The next prime is 290143151. The reversal of 290143143 is 341341092.

It is not a de Polignac number, because 290143143 - 25 = 290143111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290143163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16119055 + ... + 16119072.

Almost surely, 2290143143 is an apocalyptic number.

290143143 is a deficient number, since it is larger than the sum of its proper divisors (128952521).

290143143 is a wasteful number, since it uses less digits than its factorization.

290143143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32238133 (or 32238130 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 290143143 is about 17033.5886706237. The cubic root of 290143143 is about 662.0194824848.

The spelling of 290143143 in words is "two hundred ninety million, one hundred forty-three thousand, one hundred forty-three".

Divisors: 1 3 9 32238127 96714381 290143143