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143132061 = 31747211283
BaseRepresentation
bin10001000100000…
…00010110011101
3100222022212021110
420202000112131
5243120211221
622111452233
73355413432
oct1042002635
9328285243
10143132061
1173881266
123bb27079
1323865b37
141501bb89
15c874776
hex888059d

143132061 has 32 divisors (see below), whose sum is σ = 208078848. Its totient is φ = 87171840.

The previous prime is 143132057. The next prime is 143132113. The reversal of 143132061 is 160231341.

It is not a de Polignac number, because 143132061 - 22 = 143132057 is a prime.

It is a super-2 number, since 2×1431320612 = 40973573772215442, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143132051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505626 + ... + 505908.

It is an arithmetic number, because the mean of its divisors is an integer number (6502464).

Almost surely, 2143132061 is an apocalyptic number.

It is an amenable number.

143132061 is a deficient number, since it is larger than the sum of its proper divisors (64946787).

143132061 is a wasteful number, since it uses less digits than its factorization.

143132061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 143132061 is about 11963.7812166555. The cubic root of 143132061 is about 523.0930802042.

The spelling of 143132061 in words is "one hundred forty-three million, one hundred thirty-two thousand, sixty-one".

Divisors: 1 3 17 47 51 141 211 283 633 799 849 2397 3587 4811 9917 10761 13301 14433 29751 39903 59713 168589 179139 226117 505767 678351 1015121 2806511 3045363 8419533 47710687 143132061