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2011510012190 = 257197127212209
BaseRepresentation
bin11101010001010111010…
…101101111100100011110
321010022001120222001101212
4131101113111233210132
5230424033030342230
64140024104304422
7265220043664640
oct35212725574436
97108046861355
102011510012190
11706092a64358
12285a16772112
131178b903b083
146d5013a0890
15374cd711895
hex1d45756f91e

2011510012190 has 64 divisors (see below), whose sum is σ = 4356382694400. Its totient is φ = 653267897856.

The previous prime is 2011510012181. The next prime is 2011510012223. The reversal of 2011510012190 is 912100151102.

It is a super-2 number, since 2×20115100121902 (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9372806 + ... + 9585014.

It is an arithmetic number, because the mean of its divisors is an integer number (68068479600).

Almost surely, 22011510012190 is an apocalyptic number.

2011510012190 is an abundant number, since it is smaller than the sum of its proper divisors (2344872682210).

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

2011510012190 is a wasteful number, since it uses less digits than its factorization.

2011510012190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219369.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 2011510012190 its reverse (912100151102), we get a palindrome (2923610163292).

The spelling of 2011510012190 in words is "two trillion, eleven billion, five hundred ten million, twelve thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 7127 14254 35635 49889 71270 99778 135413 212209 249445 270826 424418 498890 677065 947891 1061045 1354130 1485463 1895782 2122090 2970926 4031971 4739455 7427315 8063942 9478910 14854630 20159855 28223797 40319710 56447594 141118985 282237970 1512413543 3024827086 7562067715 10586894801 15124135430 21173789602 28735857317 52934474005 57471714634 105868948010 143679286585 201151001219 287358573170 402302002438 1005755006095 2011510012190