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2013113140 = 225175920921
BaseRepresentation
bin111011111111101…
…1010101100110100
312012022000202001221
41313333122230310
513110324110030
6531432000124
7100613115343
oct16777325464
95168022057
102013113140
11943393775
12482230044
132610b8c0c
1415150db5a
15bbb02e7a
hex77fdab34

2013113140 has 24 divisors (see below), whose sum is σ = 4476217032. Its totient is φ = 757877760.

The previous prime is 2013113119. The next prime is 2013113149. The reversal of 2013113140 is 413113102.

It can be written as a sum of positive squares in 4 ways, for example, as 256832676 + 1756280464 = 16026^2 + 41908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013113149) 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, 2960121 + ... + 2960800.

It is an arithmetic number, because the mean of its divisors is an integer number (186509043).

Almost surely, 22013113140 is an apocalyptic number.

2013113140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013113140 is an abundant number, since it is smaller than the sum of its proper divisors (2463103892).

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

2013113140 is a wasteful number, since it uses less digits than its factorization.

2013113140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920947 (or 5920945 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2013113140 is about 44867.7293831547. The cubic root of 2013113140 is about 1262.6686405448.

Adding to 2013113140 its reverse (413113102), we get a palindrome (2426226242).

The spelling of 2013113140 in words is "two billion, thirteen million, one hundred thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 5920921 11841842 23683684 29604605 59209210 100655657 118418420 201311314 402622628 503278285 1006556570 2013113140