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8111452664 = 23779223209
BaseRepresentation
bin1111000110111101…
…01111000111111000
3202221022010111012202
413203132233013320
5113103012441124
63420520325332
7405003132020
oct74336570770
922838114182
108111452664
113492781497
1216a4613848
139c3666743
1456d3daa80
153271b35ae
hex1e37af1f8

8111452664 has 48 divisors (see below), whose sum is σ = 17605249200. Its totient is φ = 3432184704.

The previous prime is 8111452649. The next prime is 8111452667. The reversal of 8111452664 is 4662541118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8111452667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337892 + ... + 361100.

It is an arithmetic number, because the mean of its divisors is an integer number (366776025).

Almost surely, 28111452664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8111452664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8802624600).

8111452664 is an abundant number, since it is smaller than the sum of its proper divisors (9493796536).

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

8111452664 is a wasteful number, since it uses less digits than its factorization.

8111452664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23380 (or 23297 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 8111452664 is about 90063.6034366825. The cubic root of 8111452664 is about 2009.2449218640.

The spelling of 8111452664 in words is "eight billion, one hundred eleven million, four hundred fifty-two thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 79 158 316 553 632 1106 2212 4424 6241 12482 23209 24964 43687 46418 49928 87374 92836 162463 174748 185672 324926 349496 649852 1299704 1833511 3667022 7334044 12834577 14668088 25669154 51338308 102676616 144847369 289694738 579389476 1013931583 1158778952 2027863166 4055726332 8111452664