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2011420311 = 3231671731009
BaseRepresentation
bin111011111100011…
…1101011010010111
312012011211201221120
41313320331122113
513104410422221
6531331415023
7100562535105
oct16770753227
95164751846
102011420311
1194243793a
12481754473
13260945544
141511ccc75
15bb8bb5c6
hex77e3d697

2011420311 has 32 divisors (see below), whose sum is σ = 2834334720. Its totient is φ = 1266338304.

The previous prime is 2011420291. The next prime is 2011420321. The reversal of 2011420311 is 1130241102.

It is not a de Polignac number, because 2011420311 - 26 = 2011420247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011420321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1992975 + ... + 1993983.

It is an arithmetic number, because the mean of its divisors is an integer number (88572960).

Almost surely, 22011420311 is an apocalyptic number.

2011420311 is a deficient number, since it is larger than the sum of its proper divisors (822914409).

2011420311 is a wasteful number, since it uses less digits than its factorization.

2011420311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2011420311 is about 44848.8607547617. The cubic root of 2011420311 is about 1262.3146148210.

Adding to 2011420311 its reverse (1130241102), we get a palindrome (3141661413).

The spelling of 2011420311 in words is "two billion, eleven million, four hundred twenty thousand, three hundred eleven".

Divisors: 1 3 23 69 167 173 501 519 1009 3027 3841 3979 11523 11937 23207 28891 69621 86673 168503 174557 505509 523671 664493 1993479 3875569 4014811 11626707 12044433 29151019 87453057 670473437 2011420311