[go: up one dir, main page]

Search a number
-
+
8148668418 = 2331144930553
BaseRepresentation
bin1111001011011001…
…01101000000000010
3210000220011020122000
413211230231000002
5113142024342133
63424330124430
7405634352532
oct74554550002
923026136560
108148668418
113501790210
1216b4b80716
139cb296bb7
145743274c2
1532a5b5413
hex1e5b2d002

8148668418 has 64 divisors (see below), whose sum is σ = 19798992000. Its totient is φ = 2463713280.

The previous prime is 8148668399. The next prime is 8148668419.

It is a happy number.

8148668418 is a `hidden beast` number, since 81 + 486 + 6 + 84 + 1 + 8 = 666.

8148668418 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8148668419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251430 + ... + 281982.

It is an arithmetic number, because the mean of its divisors is an integer number (309359250).

Almost surely, 28148668418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8148668418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9899496000).

8148668418 is an abundant number, since it is smaller than the sum of its proper divisors (11650323582).

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

8148668418 is a wasteful number, since it uses less digits than its factorization.

8148668418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31024 (or 31018 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 54.

The square root of 8148668418 is about 90269.9751744732. The cubic root of 8148668418 is about 2012.3130733781.

The spelling of 8148668418 in words is "eight billion, one hundred forty-eight million, six hundred sixty-eight thousand, four hundred eighteen".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 449 594 898 1347 2694 4041 4939 8082 9878 12123 14817 24246 29634 30553 44451 61106 88902 91659 133353 183318 266706 274977 336083 549954 672166 824931 1008249 1649862 2016498 3024747 6049494 9074241 13718297 18148482 27436594 41154891 82309782 123464673 150901267 246929346 301802534 370394019 452703801 740788038 905407602 1358111403 2716222806 4074334209 8148668418