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11801108564 = 227421468163
BaseRepresentation
bin10101111110110011…
…01010000001010100
31010110102212102120222
422333121222001110
5143132040433224
65231002413512
7565304524220
oct127731520124
933412772528
1011801108564
115006466593
122354201298
131160ba7c9b
147dd447780
15491084b5e
hex2bf66a054

11801108564 has 12 divisors (see below), whose sum is σ = 23602217184. Its totient is φ = 5057617944.

The previous prime is 11801108549. The next prime is 11801108567. The reversal of 11801108564 is 46580110811.

11801108564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11801108564 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11801108567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210734054 + ... + 210734109.

It is an arithmetic number, because the mean of its divisors is an integer number (1966851432).

Almost surely, 211801108564 is an apocalyptic number.

11801108564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11801108564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11801108564 is a wasteful number, since it uses less digits than its factorization.

11801108564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421468174 (or 421468172 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 35.

The spelling of 11801108564 in words is "eleven billion, eight hundred one million, one hundred eight thousand, five hundred sixty-four".

Divisors: 1 2 4 7 14 28 421468163 842936326 1685872652 2950277141 5900554282 11801108564