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143113055 = 5175928537
BaseRepresentation
bin10001000011110…
…11101101011111
3100222021220012112
420201323231133
5243114104210
622111224235
73355304141
oct1041735537
9328256175
10143113055
1173868a58
123bb1807b
132385a2a7
1415014c91
15c86dd05
hex887bb5f

143113055 has 16 divisors (see below), whose sum is σ = 184926240. Its totient is φ = 105925632.

The previous prime is 143113051. The next prime is 143113063. The reversal of 143113055 is 550311341.

It is a cyclic number.

It is not a de Polignac number, because 143113055 - 22 = 143113051 is a prime.

It is a super-2 number, since 2×1431130552 = 40962693022866050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143113055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143113051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9254 + ... + 19283.

It is an arithmetic number, because the mean of its divisors is an integer number (11557890).

Almost surely, 2143113055 is an apocalyptic number.

143113055 is a deficient number, since it is larger than the sum of its proper divisors (41813185).

143113055 is a wasteful number, since it uses less digits than its factorization.

143113055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28618.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 143113055 is about 11962.9868761944. The cubic root of 143113055 is about 523.0699259528.

Adding to 143113055 its reverse (550311341), we get a palindrome (693424396).

The spelling of 143113055 in words is "one hundred forty-three million, one hundred thirteen thousand, fifty-five".

Divisors: 1 5 17 59 85 295 1003 5015 28537 142685 485129 1683683 2425645 8418415 28622611 143113055