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2102110000 = 2454316781
BaseRepresentation
bin111110101001011…
…1010011100110000
312102111111020210221
41331102322130300
513301120010000
6544331302424
7103043432404
oct17522723460
95374436727
102102110000
1198964a3a1
124a7baaa14
13276679393
1415d279104
15c483261a
hex7d4ba730

2102110000 has 100 divisors (see below), whose sum is σ = 5254368064. Its totient is φ = 813600000.

The previous prime is 2102109991. The next prime is 2102110007. The reversal of 2102110000 is 112012.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (2102110007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 306610 + ... + 313390.

Almost surely, 22102110000 is an apocalyptic number.

2102110000 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 2102110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2627184032).

2102110000 is an abundant number, since it is smaller than the sum of its proper divisors (3152258064).

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

2102110000 is an equidigital number, since it uses as much as digits as its factorization.

2102110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840 (or 6819 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2102110000 is about 45848.7731569777. The cubic root of 2102110000 is about 1281.0079138097.

Adding to 2102110000 its reverse (112012), we get a palindrome (2102222012).

The spelling of 2102110000 in words is "two billion, one hundred two million, one hundred ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 31 40 50 62 80 100 124 125 155 200 248 250 310 400 496 500 620 625 775 1000 1240 1250 1550 2000 2480 2500 3100 3875 5000 6200 6781 7750 10000 12400 13562 15500 19375 27124 31000 33905 38750 54248 62000 67810 77500 108496 135620 155000 169525 210211 271240 310000 339050 420422 542480 678100 840844 847625 1051055 1356200 1681688 1695250 2102110 2712400 3363376 3390500 4204220 4238125 5255275 6781000 8408440 8476250 10510550 13562000 16816880 16952500 21021100 26276375 33905000 42042200 52552750 67810000 84084400 105105500 131381875 210211000 262763750 420422000 525527500 1051055000 2102110000