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143243164 = 22229353443
BaseRepresentation
bin10001000100110…
…11011110011100
3100222112111200101
420202123132130
5243132240124
622114110444
73356355361
oct1042333634
9328474611
10143243164
1173947789
123bb7b424
13238a458c
141504a468
15c897644
hex889b79c

143243164 has 24 divisors (see below), whose sum is σ = 253053360. Its totient is φ = 70946304.

The previous prime is 143243141. The next prime is 143243171. The reversal of 143243164 is 461342341.

143243164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323127 + ... + 323569.

It is an arithmetic number, because the mean of its divisors is an integer number (10543890).

Almost surely, 2143243164 is an apocalyptic number.

It is an amenable number.

143243164 is a deficient number, since it is larger than the sum of its proper divisors (109810196).

143243164 is a wasteful number, since it uses less digits than its factorization.

143243164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1027 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 143243164 is about 11968.4236221818. The cubic root of 143243164 is about 523.2283915597.

The spelling of 143243164 in words is "one hundred forty-three million, two hundred forty-three thousand, one hundred sixty-four".

Divisors: 1 2 4 229 353 443 458 706 886 916 1412 1772 80837 101447 156379 161674 202894 312758 323348 405788 625516 35810791 71621582 143243164