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8132011871 = 59023137777
BaseRepresentation
bin1111001001011010…
…01010011101011111
3202222201211000010212
413210231022131133
5113123243334441
63422533123035
7405342650264
oct74455123537
922881730125
108132011871
1134a3343975
1216ab48947b
139c79b4559
1457202d26b
15328dc4eeb
hex1e4b4a75f

8132011871 has 4 divisors (see below), whose sum is σ = 8132208672. Its totient is φ = 8131815072.

The previous prime is 8132011847. The next prime is 8132011939. The reversal of 8132011871 is 1781102318.

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

It is a cyclic number.

It is not a de Polignac number, because 8132011871 - 222 = 8127817567 is a prime.

It is a super-2 number, since 2×81320118712 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8132011801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9866 + ... + 127911.

It is an arithmetic number, because the mean of its divisors is an integer number (2033052168).

Almost surely, 28132011871 is an apocalyptic number.

8132011871 is a deficient number, since it is larger than the sum of its proper divisors (196801).

8132011871 is a wasteful number, since it uses less digits than its factorization.

8132011871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196800.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 8132011871 is about 90177.6683608531. The cubic root of 8132011871 is about 2010.9410270710.

The spelling of 8132011871 in words is "eight billion, one hundred thirty-two million, eleven thousand, eight hundred seventy-one".

Divisors: 1 59023 137777 8132011871