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101143075 = 52112315991
BaseRepresentation
bin1100000011101…
…01001000100011
321001022121012211
412001311020203
5201343034300
614011502551
72335462525
oct601651043
9231277184
10101143075
1152102320
1229a57a57
1317c53b97
14d60ba15
158d2d4ba
hex6075223

101143075 has 24 divisors (see below), whose sum is σ = 142776576. Its totient is φ = 70356000.

The previous prime is 101143073. The next prime is 101143129. The reversal of 101143075 is 570341101.

It is not a de Polignac number, because 101143075 - 21 = 101143073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101143073) 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 23 ways as a sum of consecutive naturals, for example, 1671 + ... + 14320.

It is an arithmetic number, because the mean of its divisors is an integer number (5949024).

Almost surely, 2101143075 is an apocalyptic number.

101143075 is a deficient number, since it is larger than the sum of its proper divisors (41633501).

101143075 is a wasteful number, since it uses less digits than its factorization.

101143075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16035 (or 16030 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 101143075 is about 10056.9913493052. The cubic root of 101143075 is about 465.9207485555.

Adding to 101143075 its reverse (570341101), we get a palindrome (671484176).

The spelling of 101143075 in words is "one hundred one million, one hundred forty-three thousand, seventy-five".

Divisors: 1 5 11 23 25 55 115 253 275 575 1265 6325 15991 79955 175901 367793 399775 879505 1838965 4045723 4397525 9194825 20228615 101143075