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11945372827 = 19809777137
BaseRepresentation
bin10110001111111111…
…11110110010011011
31010211111022210221211
423013333332302123
5143431003412302
65253154443551
7602005664563
oct130777766233
933744283854
1011945372827
11507a940453
1223945935b7
131184a4925b
1481467bda3
1549da7ead7
hex2c7ffec9b

11945372827 has 8 divisors (see below), whose sum is σ = 12589635600. Its totient is φ = 11302665984.

The previous prime is 11945372819. The next prime is 11945372863. The reversal of 11945372827 is 72827354911.

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

It is a cyclic number.

It is not a de Polignac number, because 11945372827 - 23 = 11945372819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11945373827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373198 + ... + 403939.

It is an arithmetic number, because the mean of its divisors is an integer number (1573704450).

Almost surely, 211945372827 is an apocalyptic number.

11945372827 is a deficient number, since it is larger than the sum of its proper divisors (644262773).

11945372827 is an equidigital number, since it uses as much as digits as its factorization.

11945372827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777965.

The product of its digits is 846720, while the sum is 49.

The spelling of 11945372827 in words is "eleven billion, nine hundred forty-five million, three hundred seventy-two thousand, eight hundred twenty-seven".

Divisors: 1 19 809 15371 777137 14765603 628703833 11945372827