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11605488893 = 23671490283
BaseRepresentation
bin10101100111011110…
…11011010011111101
31002221210202220211222
422303233123103331
5142232001121033
65155333523125
7560411012405
oct126357332375
932853686758
1011605488893
114a15aa5639
1222ba7a34a5
13112c4c56bb
147c1485805
1547dce3598
hex2b3bdb4fd

11605488893 has 4 divisors (see below), whose sum is σ = 11606002848. Its totient is φ = 11604974940.

The previous prime is 11605488877. The next prime is 11605488907. The reversal of 11605488893 is 39888450611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11605488893 - 24 = 11605488877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11605488593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221471 + ... + 268812.

It is an arithmetic number, because the mean of its divisors is an integer number (2901500712).

Almost surely, 211605488893 is an apocalyptic number.

It is an amenable number.

11605488893 is a deficient number, since it is larger than the sum of its proper divisors (513955).

11605488893 is an equidigital number, since it uses as much as digits as its factorization.

11605488893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513954.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 11605488893 in words is "eleven billion, six hundred five million, four hundred eighty-eight thousand, eight hundred ninety-three".

Divisors: 1 23671 490283 11605488893