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10890664000 = 26534612953
BaseRepresentation
bin10100010010010001…
…00101100001000000
31001002222201001102221
422021020211201000
5134301002222000
65000400420424
7533611054666
oct121110454100
931088631387
1010890664000
114689550067
12213b317714
1310473955a8
1475456cc36
1543b19361a
hex289225840

10890664000 has 112 divisors (see below), whose sum is σ = 27038387376. Its totient is φ = 4345344000.

The previous prime is 10890663997. The next prime is 10890664007. The reversal of 10890664000 is 46609801.

It can be written as a sum of positive squares in 8 ways, for example, as 2757510144 + 8133153856 = 52512^2 + 90184^2 .

It is not an unprimeable number, because it can be changed into a prime (10890664007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3686524 + ... + 3689476.

It is an arithmetic number, because the mean of its divisors is an integer number (241414173).

Almost surely, 210890664000 is an apocalyptic number.

10890664000 is a gapful number since it is divisible by the number (10) 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 10890664000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13519193688).

10890664000 is an abundant number, since it is smaller than the sum of its proper divisors (16147723376).

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

10890664000 is an equidigital number, since it uses as much as digits as its factorization.

10890664000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 10890664000 in words is "ten billion, eight hundred ninety million, six hundred sixty-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 461 500 800 922 1000 1600 1844 2000 2305 2953 3688 4000 4610 5906 7376 8000 9220 11525 11812 14752 14765 18440 23050 23624 29504 29530 36880 46100 47248 57625 59060 73760 73825 92200 94496 115250 118120 147520 147650 184400 188992 230500 236240 295300 368800 369125 461000 472480 590600 737600 738250 922000 944960 1181200 1361333 1476500 1844000 2362400 2722666 2953000 3688000 4724800 5445332 5906000 6806665 10890664 11812000 13613330 21781328 23624000 27226660 34033325 43562656 54453320 68066650 87125312 108906640 136133300 170166625 217813280 272266600 340333250 435626560 544533200 680666500 1089066400 1361333000 2178132800 2722666000 5445332000 10890664000