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2011420125 = 3253111312503
BaseRepresentation
bin111011111100011…
…1101010111011101
312012011211201200200
41313320331113131
513104410421000
6531331414113
7100562534421
oct16770752735
95164751620
102011420125
11942437790
12481754339
13260945430
141511ccb81
15bb8bb500
hex77e3d5dd

2011420125 has 96 divisors (see below), whose sum is σ = 4260162816. Its totient is φ = 900144000.

The previous prime is 2011420097. The next prime is 2011420129. The reversal of 2011420125 is 5210241102.

It is not a de Polignac number, because 2011420125 - 222 = 2007225821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011420098 and 2011420107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011420129) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 154624 + ... + 167126.

It is an arithmetic number, because the mean of its divisors is an integer number (44376696).

Almost surely, 22011420125 is an apocalyptic number.

2011420125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2011420125 is an abundant number, since it is smaller than the sum of its proper divisors (2248742691).

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

2011420125 is a wasteful number, since it uses less digits than its factorization.

2011420125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12548 (or 12535 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2011420125 is about 44848.8586811303. The cubic root of 2011420125 is about 1262.3145759115.

Adding to 2011420125 its reverse (5210241102), we get a palindrome (7221661227).

The spelling of 2011420125 in words is "two billion, eleven million, four hundred twenty thousand, one hundred twenty-five".

Divisors: 1 3 5 9 11 13 15 25 33 39 45 55 65 75 99 117 125 143 165 195 225 275 325 375 429 495 585 715 825 975 1125 1287 1375 1625 2145 2475 2925 3575 4125 4875 6435 10725 12375 12503 14625 17875 32175 37509 53625 62515 112527 137533 160875 162539 187545 312575 412599 487617 562635 687665 812695 937725 1237797 1462851 1562875 1787929 2062995 2438085 2813175 3438325 4063475 4688625 5363787 6188985 7314255 8939645 10314975 12190425 14065875 16091361 17191625 20317375 26818935 30944925 36571275 44698225 51574875 60952125 80456805 134094675 154724625 182856375 223491125 402284025 670473375 2011420125