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2013102030020 = 2252924371424237
BaseRepresentation
bin11101010010110110001…
…110110011110011000100
321010110011112121221022012
4131102312032303303010
5230440313104430040
64140450054553352
7265304354631224
oct35226616636304
97113145557265
102013102030020
1170682a683974
1228619b968858
13117ab0b0a863
146d6129b8084
1537573385865
hex1d4b63b3cc4

2013102030020 has 48 divisors (see below), whose sum is σ = 4375088227440. Its totient is φ = 777154312704.

The previous prime is 2013102029993. The next prime is 2013102030029. The reversal of 2013102030020 is 200302013102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6680773696 + 2006421256324 = 81736^2 + 1416482^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2013102029977 and 2013102030004.

It is not an unprimeable number, because it can be changed into a prime (2013102030029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701342 + ... + 2125578.

It is an arithmetic number, because the mean of its divisors is an integer number (91147671405).

Almost surely, 22013102030020 is an apocalyptic number.

2013102030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013102030020 is an abundant number, since it is smaller than the sum of its proper divisors (2361986197420).

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

2013102030020 is a wasteful number, since it uses less digits than its factorization.

2013102030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426712 (or 1426710 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 2013102030020 its reverse (200302013102), we get a palindrome (2213404043122).

The spelling of 2013102030020 in words is "two trillion, thirteen billion, one hundred two million, thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 2437 4874 9748 12185 24370 48740 70673 141346 282692 353365 706730 1413460 1424237 2848474 5696948 7121185 14242370 28484740 41302873 82605746 165211492 206514365 413028730 826057460 3470865569 6941731138 13883462276 17354327845 34708655690 69417311380 100655101501 201310203002 402620406004 503275507505 1006551015010 2013102030020