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52143086 = 226071543
BaseRepresentation
bin1100011011101…
…0001111101110
310122010010212102
43012322033232
5101322034321
65101335102
71202131442
oct306721756
9118103772
1052143086
1127484966
1215567492
13aa589c8
146cd4822
15489ec0b
hex31ba3ee

52143086 has 4 divisors (see below), whose sum is σ = 78214632. Its totient is φ = 26071542.

The previous prime is 52143067. The next prime is 52143089. The reversal of 52143086 is 68034125.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52143089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13035770 + ... + 13035773.

It is an arithmetic number, because the mean of its divisors is an integer number (19553658).

Almost surely, 252143086 is an apocalyptic number.

52143086 is a deficient number, since it is larger than the sum of its proper divisors (26071546).

52143086 is a wasteful number, since it uses less digits than its factorization.

52143086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26071545.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 52143086 is about 7221.0169643894. The cubic root of 52143086 is about 373.5931547716.

The spelling of 52143086 in words is "fifty-two million, one hundred forty-three thousand, eighty-six".

Divisors: 1 2 26071543 52143086