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143252441 = 2310161667
BaseRepresentation
bin10001000100111…
…01101111011001
3100222112222101222
420202131233121
5243133034231
622114221425
73356424413
oct1042355731
9328488358
10143252441
1173953752
123bb84875
13238a8877
141504d9b3
15c89a27b
hex889dbd9

143252441 has 8 divisors (see below), whose sum is σ = 150963264. Its totient is φ = 135665200.

The previous prime is 143252423. The next prime is 143252443. The reversal of 143252441 is 144252341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143252441 - 26 = 143252377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143252441.

It is not an unprimeable number, because it can be changed into a prime (143252443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28511 + ... + 33156.

It is an arithmetic number, because the mean of its divisors is an integer number (18870408).

Almost surely, 2143252441 is an apocalyptic number.

It is an amenable number.

143252441 is a deficient number, since it is larger than the sum of its proper divisors (7710823).

143252441 is a wasteful number, since it uses less digits than its factorization.

143252441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61791.

The product of its digits is 3840, while the sum is 26.

The square root of 143252441 is about 11968.8111773893. The cubic root of 143252441 is about 523.2396867701.

It can be divided in two parts, 143 and 252441, that multiplied together give a palindrome (36099063).

The spelling of 143252441 in words is "one hundred forty-three million, two hundred fifty-two thousand, four hundred forty-one".

Divisors: 1 23 101 2323 61667 1418341 6228367 143252441