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11818960645 = 53176251359
BaseRepresentation
bin10110000000111011…
…10000011100000101
31010111200110102001011
423000131300130011
5143201123220040
65232441202221
7565612336132
oct130035603405
933450412034
1011818960645
11501554a078
12235a190371
1311647b884b
14801973589
1549290e3ea
hex2c0770705

11818960645 has 8 divisors (see below), whose sum is σ = 14640261120. Its totient is φ = 9150162960.

The previous prime is 11818960589. The next prime is 11818960651. The reversal of 11818960645 is 54606981811.

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

It is a de Polignac number, because none of the positive numbers 2k-11818960645 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38125525 + ... + 38125834.

It is an arithmetic number, because the mean of its divisors is an integer number (1830032640).

Almost surely, 211818960645 is an apocalyptic number.

It is an amenable number.

11818960645 is a deficient number, since it is larger than the sum of its proper divisors (2821300475).

11818960645 is an equidigital number, since it uses as much as digits as its factorization.

11818960645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76251395.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 11818960645 in words is "eleven billion, eight hundred eighteen million, nine hundred sixty thousand, six hundred forty-five".

Divisors: 1 5 31 155 76251359 381256795 2363792129 11818960645