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143071968 = 25313114641
BaseRepresentation
bin10001000011100…
…01101011100000
3100222012210211210
420201301223200
5243111300333
622110310120
73355043304
oct1041615340
9328183753
10143071968
11738400a6
123bab8340
1323844690
1415003d04
15c861a63
hex8871ae0

143071968 has 48 divisors (see below), whose sum is σ = 404456976. Its totient is φ = 44021760.

The previous prime is 143071961. The next prime is 143071969. The reversal of 143071968 is 869170341.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143071961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56073 + ... + 58568.

It is an arithmetic number, because the mean of its divisors is an integer number (8426187).

Almost surely, 2143071968 is an apocalyptic number.

It is an amenable number.

143071968 is an abundant number, since it is smaller than the sum of its proper divisors (261385008).

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

143071968 is a wasteful number, since it uses less digits than its factorization.

143071968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114667 (or 114659 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 143071968 is about 11961.2694978418. The cubic root of 143071968 is about 523.0198642933.

The spelling of 143071968 in words is "one hundred forty-three million, seventy-one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 114641 229282 343923 458564 687846 917128 1375692 1490333 1834256 2751384 2980666 3668512 4470999 5502768 5961332 8941998 11005536 11922664 17883996 23845328 35767992 47690656 71535984 143071968