Search a number
-
+
2845668100 = 22521123137821
BaseRepresentation
bin1010100110011101…
…0111001100000100
321100022121220202211
42221213113030010
521311442334400
61150212313204
7130342531312
oct25147271404
97308556684
102845668100
11123033a620
12675012804
133647299a2
141cdd110b2
15119c5adba
hexa99d7304

2845668100 has 144 divisors (see below), whose sum is σ = 7089296256. Its totient is φ = 981376000.

The previous prime is 2845668071. The next prime is 2845668149. The reversal of 2845668100 is 18665482.

It is a super-2 number, since 2×28456681002 = 16195653870715220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3465690 + ... + 3466510.

It is an arithmetic number, because the mean of its divisors is an integer number (49231224).

Almost surely, 22845668100 is an apocalyptic number.

2845668100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2845668100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3544648128).

2845668100 is an abundant number, since it is smaller than the sum of its proper divisors (4243628156).

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

2845668100 is a wasteful number, since it uses less digits than its factorization.

2845668100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 2845668100 is about 53344.8038706677. The cubic root of 2845668100 is about 1417.0812393752.

The spelling of 2845668100 in words is "two billion, eight hundred forty-five million, six hundred sixty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 23 25 44 46 50 55 92 100 110 115 137 220 230 253 274 275 460 506 548 550 575 685 821 1012 1100 1150 1265 1370 1507 1642 2300 2530 2740 3014 3151 3284 3425 4105 5060 6028 6302 6325 6850 7535 8210 9031 12604 12650 13700 15070 15755 16420 18062 18883 20525 25300 30140 31510 34661 36124 37675 37766 41050 45155 63020 69322 75350 75532 78775 82100 90310 94415 112477 138644 150700 157550 173305 180620 188830 207713 224954 225775 315100 346610 377660 415426 449908 451550 472075 562385 693220 830852 866525 903100 944150 1038565 1124770 1237247 1733050 1888300 2077130 2249540 2474494 2586971 2811925 3466100 4154260 4948988 5173942 5192825 5623850 6186235 10347884 10385650 11247700 12372470 12934855 20771300 24744940 25869710 28456681 30931175 51739420 56913362 61862350 64674275 113826724 123724700 129348550 142283405 258697100 284566810 569133620 711417025 1422834050 2845668100