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2011013420 = 225137734667
BaseRepresentation
bin111011111011101…
…1010000100101100
312012011002001210112
41313313122010230
513104304412140
6531314555152
7100556221613
oct16767320454
95164061715
102011013420
1194218a169
12481598ab8
13260832290
1415112487a
15bb83ac65
hex77dda12c

2011013420 has 24 divisors (see below), whose sum is σ = 4547984784. Its totient is φ = 742527936.

The previous prime is 2011013401. The next prime is 2011013423. The reversal of 2011013420 is 243101102.

It is a junction number, because it is equal to n+sod(n) for n = 2011013395 and 2011013404.

It is not an unprimeable number, because it can be changed into a prime (2011013423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3867074 + ... + 3867593.

It is an arithmetic number, because the mean of its divisors is an integer number (189499366).

Almost surely, 22011013420 is an apocalyptic number.

2011013420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011013420 is an abundant number, since it is smaller than the sum of its proper divisors (2536971364).

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

2011013420 is a wasteful number, since it uses less digits than its factorization.

2011013420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734689 (or 7734687 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2011013420 is about 44844.3242785528. The cubic root of 2011013420 is about 1262.2294910421.

Adding to 2011013420 its reverse (243101102), we get a palindrome (2254114522).

The spelling of 2011013420 in words is "two billion, eleven million, thirteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 7734667 15469334 30938668 38673335 77346670 100550671 154693340 201101342 402202684 502753355 1005506710 2011013420