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8213072136160 = 25551331700851
BaseRepresentation
bin111011110000100000100…
…1111110100011111100000
31002002011101010012102000211
41313201001033310133200
52034030332431324120
625245011103223504
71505242404202333
oct167410117643740
932064333172024
108213072136160
112687165119851
12b078b92a7b94
13477649220c38
1420572c90661a
15e3992d3a25a
hex778413f47e0

8213072136160 has 24 divisors (see below), whose sum is σ = 19403382922056. Its totient is φ = 3285228854400.

The previous prime is 8213072136151. The next prime is 8213072136167. The reversal of 8213072136160 is 616312703128.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8213072136167) 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, 25665850266 + ... + 25665850585.

It is an arithmetic number, because the mean of its divisors is an integer number (808474288419).

Almost surely, 28213072136160 is an apocalyptic number.

8213072136160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8213072136160 is an abundant number, since it is smaller than the sum of its proper divisors (11190310785896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8213072136160 is a wasteful number, since it uses less digits than its factorization.

8213072136160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51331700866 (or 51331700858 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

Adding to 8213072136160 its reverse (616312703128), we get a palindrome (8829384839288).

The spelling of 8213072136160 in words is "eight trillion, two hundred thirteen billion, seventy-two million, one hundred thirty-six thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 51331700851 102663401702 205326803404 256658504255 410653606808 513317008510 821307213616 1026634017020 1642614427232 2053268034040 4106536068080 8213072136160