Search a number
-
+
8106718144 = 267194192273
BaseRepresentation
bin1111000110011001…
…01011001111000000
3202220222012221200011
413203030223033000
5113100304440034
63420231034304
7404614652530
oct74314531700
922828187604
108106718144
113490038368
1216a2b0b994
139c2699755
1456c9274c0
15326a7a864
hex1e332b3c0

8106718144 has 112 divisors (see below), whose sum is σ = 19407225600. Its totient is φ = 3282149376.

The previous prime is 8106718133. The next prime is 8106718181. The reversal of 8106718144 is 4418176018.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 8106718097 and 8106718106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565392 + ... + 3567664.

It is an arithmetic number, because the mean of its divisors is an integer number (173278800).

Almost surely, 28106718144 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 8106718144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9703612800).

8106718144 is an abundant number, since it is smaller than the sum of its proper divisors (11300507456).

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

8106718144 is a wasteful number, since it uses less digits than its factorization.

8106718144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 8106718144 is about 90037.3152864966. The cubic root of 8106718144 is about 2008.8539248345.

The spelling of 8106718144 in words is "eight billion, one hundred six million, seven hundred eighteen thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 19 28 32 38 56 64 76 112 133 152 224 266 304 419 448 532 608 838 1064 1216 1676 2128 2273 2933 3352 4256 4546 5866 6704 7961 8512 9092 11732 13408 15911 15922 18184 23464 26816 31822 31844 36368 43187 46928 55727 63644 63688 72736 86374 93856 111454 127288 127376 145472 172748 187712 222908 254576 254752 302309 345496 445816 509152 509504 604618 690992 891632 952387 1018304 1209236 1381984 1783264 1904774 2418472 2763968 3566528 3809548 4836944 6666709 7619096 9673888 13333418 15238192 18095353 19347776 26666836 30476384 36190706 53333672 60952768 72381412 106667344 126667471 144762824 213334688 253334942 289525648 426669376 506669884 579051296 1013339768 1158102592 2026679536 4053359072 8106718144