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27893872694 = 2103135407149
BaseRepresentation
bin11001111110100110…
…101011100000110110
32122222222020112212002
4121332212223200312
5424111312411234
620451514255302
72005144002002
oct317646534066
978888215762
1027893872694
1110914400456
1254a5727532
132826c4031c
1414c8845702
15ad3ca127e
hex67e9ab836

27893872694 has 8 divisors (see below), whose sum is σ = 42247030800. Its totient is φ = 13811529096.

The previous prime is 27893872681. The next prime is 27893872733. The reversal of 27893872694 is 49627839872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 27893872694.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67703369 + ... + 67703780.

It is an arithmetic number, because the mean of its divisors is an integer number (5280878850).

Almost surely, 227893872694 is an apocalyptic number.

27893872694 is a deficient number, since it is larger than the sum of its proper divisors (14353158106).

27893872694 is a wasteful number, since it uses less digits than its factorization.

27893872694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135407254.

The product of its digits is 73156608, while the sum is 65.

The spelling of 27893872694 in words is "twenty-seven billion, eight hundred ninety-three million, eight hundred seventy-two thousand, six hundred ninety-four".

Divisors: 1 2 103 206 135407149 270814298 13946936347 27893872694