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27197094007 = 158317180729
BaseRepresentation
bin11001010101000100…
…101011100001110111
32121012102010112012001
4121111010223201313
5421144424002012
620254424040131
71651653325156
oct312504534167
977172115161
1027197094007
11105970612a6
125330303047
13274578b245
1414600a959d
15a92a18357
hex65512b877

27197094007 has 4 divisors (see below), whose sum is σ = 27214276320. Its totient is φ = 27179911696.

The previous prime is 27197093971. The next prime is 27197094079. The reversal of 27197094007 is 70049079172.

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 27197094007 - 231 = 25049610359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27197091007) 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, 8588782 + ... + 8591947.

It is an arithmetic number, because the mean of its divisors is an integer number (6803569080).

Almost surely, 227197094007 is an apocalyptic number.

27197094007 is a deficient number, since it is larger than the sum of its proper divisors (17182313).

27197094007 is a wasteful number, since it uses less digits than its factorization.

27197094007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17182312.

The product of its (nonzero) digits is 222264, while the sum is 46.

The spelling of 27197094007 in words is "twenty-seven billion, one hundred ninety-seven million, ninety-four thousand, seven".

Divisors: 1 1583 17180729 27197094007