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10971806894 = 212569436463
BaseRepresentation
bin10100011011111100…
…00111110010101110
31001022122101112120022
422031332013302232
5134432240310034
65012415522142
7535614551126
oct121576076256
931278345508
1010971806894
114720331a04
122162529352
13105b135c39
14761251c86
15443370b2e
hex28df87cae

10971806894 has 8 divisors (see below), whose sum is σ = 16459057440. Its totient is φ = 5485454416.

The previous prime is 10971806893. The next prime is 10971806897. The reversal of 10971806894 is 49860817901.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10971806893) 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, 193094 + ... + 243369.

It is an arithmetic number, because the mean of its divisors is an integer number (2057382180).

Almost surely, 210971806894 is an apocalyptic number.

10971806894 is a deficient number, since it is larger than the sum of its proper divisors (5487250546).

10971806894 is a wasteful number, since it uses less digits than its factorization.

10971806894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449034.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 10971806894 in words is "ten billion, nine hundred seventy-one million, eight hundred six thousand, eight hundred ninety-four".

Divisors: 1 2 12569 25138 436463 872926 5485903447 10971806894