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11010020000 = 2554778643
BaseRepresentation
bin10100100000011111…
…11001001010100000
31001102022021222002112
422100033321022200
5140022031120000
65020302534452
7536560424450
oct122017711240
931368258075
1011010020000
11473a961a91
122173297428
131066025345
1476635bd60
154468bd235
hex2903f92a0

11010020000 has 120 divisors (see below), whose sum is σ = 30956165856. Its totient is φ = 3774816000.

The previous prime is 11010019997. The next prime is 11010020051. The reversal of 11010020000 is 2001011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100679 + ... + 179321.

Almost surely, 211010020000 is an apocalyptic number.

11010020000 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 11010020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15478082928).

11010020000 is an abundant number, since it is smaller than the sum of its proper divisors (19946145856).

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

11010020000 is an frugal number, since it uses more digits than its factorization.

11010020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78680 (or 78657 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 11010020000 its reverse (2001011), we get a palindrome (11012021011).

The spelling of 11010020000 in words is "eleven billion, ten million, twenty thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 125 140 160 175 200 224 250 280 350 400 500 560 625 700 800 875 1000 1120 1250 1400 1750 2000 2500 2800 3500 4000 4375 5000 5600 7000 8750 10000 14000 17500 20000 28000 35000 70000 78643 140000 157286 314572 393215 550501 629144 786430 1101002 1258288 1572860 1966075 2202004 2516576 2752505 3145720 3932150 4404008 5505010 6291440 7864300 8808016 9830375 11010020 12582880 13762525 15728600 17616032 19660750 22020040 27525050 31457200 39321500 44040080 49151875 55050100 62914400 68812625 78643000 88080160 98303750 110100200 137625250 157286000 196607500 220200400 275250500 314572000 344063125 393215000 440400800 550501000 688126250 786430000 1101002000 1376252500 1572860000 2202004000 2752505000 5505010000 11010020000