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2011200200020 = 2251179115719229
BaseRepresentation
bin11101010001000100110…
…111111001110101010100
321010021020222222222000001
4131101010313321311110
5230422414222400040
64135533240101044
7265206262430314
oct35210467716524
97107228888001
102011200200020
11705a44098940
1228594aa64784
13117869ab606b
146d4b2195444
15374b141559a
hex1d444df9d54

2011200200020 has 48 divisors (see below), whose sum is σ = 4665799353600. Its totient is φ = 722087982720.

The previous prime is 2011200199991. The next prime is 2011200200027. The reversal of 2011200200020 is 200020021102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011200200027) 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, 57842235 + ... + 57876994.

It is an arithmetic number, because the mean of its divisors is an integer number (97204153200).

Almost surely, 22011200200020 is an apocalyptic number.

2011200200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011200200020 is an abundant number, since it is smaller than the sum of its proper divisors (2654599153580).

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

2011200200020 is a wasteful number, since it uses less digits than its factorization.

2011200200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115719328 (or 115719326 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2011200200020 its reverse (200020021102), we get a palindrome (2211220221122).

The spelling of 2011200200020 in words is "two trillion, eleven billion, two hundred million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 79 110 158 220 316 395 790 869 1580 1738 3476 4345 8690 17380 115719229 231438458 462876916 578596145 1157192290 1272911519 2314384580 2545823038 5091646076 6364557595 9141819091 12729115190 18283638182 25458230380 36567276364 45709095455 91418190910 100560010001 182836381820 201120020002 402240040004 502800050005 1005600100010 2011200200020