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11831841889 = 723124413191
BaseRepresentation
bin10110000010011101…
…11001010001100001
31010112120200211210021
423001032321101201
5143212422420024
65234021233441
7566126665600
oct130116712141
933476624707
1011831841889
115021847a2a
122362562881
13116737899a
14803567a37
15493b05de4
hex2c13b9461

11831841889 has 24 divisors (see below), whose sum is σ = 14217831936. Its totient is φ = 9807336000.

The previous prime is 11831841877. The next prime is 11831841893. The reversal of 11831841889 is 98814813811.

It is not a de Polignac number, because 11831841889 - 27 = 11831841761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11831841809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3706284 + ... + 3709474.

It is an arithmetic number, because the mean of its divisors is an integer number (592409664).

Almost surely, 211831841889 is an apocalyptic number.

It is an amenable number.

11831841889 is a deficient number, since it is larger than the sum of its proper divisors (2385990047).

11831841889 is a wasteful number, since it uses less digits than its factorization.

11831841889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677 (or 5670 counting only the distinct ones).

The product of its digits is 442368, while the sum is 52.

The spelling of 11831841889 in words is "eleven billion, eight hundred thirty-one million, eight hundred forty-one thousand, eight hundred eighty-nine".

Divisors: 1 7 31 49 217 1519 2441 3191 17087 22337 75671 98921 119609 156359 529697 692447 3707879 4847129 7789231 54524617 241466161 381672319 1690263127 11831841889