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2010681900 = 2233526471151
BaseRepresentation
bin111011111011000…
…1001001000101100
312012010110020001000
41313312021020230
513104213310100
6531303520300
7100553341233
oct16766111054
95163406030
102010681900
11941a83087
12481459090
13260747406
14151079b1a
15bb7c2900
hex77d8922c

2010681900 has 144 divisors (see below), whose sum is σ = 6479585280. Its totient is φ = 534888000.

The previous prime is 2010681877. The next prime is 2010681901. The reversal of 2010681900 is 91860102.

2010681900 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×20106819002 = 8085683405975220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2010681901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1746325 + ... + 1747475.

It is an arithmetic number, because the mean of its divisors is an integer number (44997120).

Almost surely, 22010681900 is an apocalyptic number.

2010681900 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 2010681900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3239792640).

2010681900 is an abundant number, since it is smaller than the sum of its proper divisors (4468903380).

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

2010681900 is a wasteful number, since it uses less digits than its factorization.

2010681900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2010681900 is about 44840.6277832949. The cubic root of 2010681900 is about 1262.1601267914.

The spelling of 2010681900 in words is "two billion, ten million, six hundred eighty-one thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 90 100 108 135 150 180 225 270 300 450 540 647 675 900 1151 1294 1350 1941 2302 2588 2700 3235 3453 3882 4604 5755 5823 6470 6906 7764 9705 10359 11510 11646 12940 13812 16175 17265 17469 19410 20718 23020 23292 28775 29115 31077 32350 34530 34938 38820 41436 48525 51795 57550 58230 62154 64700 69060 69876 86325 87345 97050 103590 115100 116460 124308 145575 155385 172650 174690 194100 207180 258975 291150 310770 345300 349380 436725 517950 582300 621540 744697 776925 873450 1035900 1489394 1553850 1746900 2234091 2978788 3107700 3723485 4468182 6702273 7446970 8936364 11170455 13404546 14893940 18617425 20106819 22340910 26809092 33511365 37234850 40213638 44681820 55852275 67022730 74469700 80427276 100534095 111704550 134045460 167556825 201068190 223409100 335113650 402136380 502670475 670227300 1005340950 2010681900