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2013203201240 = 23571117359107101
BaseRepresentation
bin11101010010111100010…
…000101111110011011000
321010110102120222222010102
4131102330100233303120
5230441020004414430
64140504111234532
7265310023602110
oct35227420576330
97113376888112
102013203201240
117068817a5350
12286209818a48
13117ac8a7149a
146d6221d2040
153757c1bc345
hex1d4bc42fcd8

2013203201240 has 256 divisors, whose sum is σ = 5996341094400. Its totient is φ = 588930048000.

The previous prime is 2013203201203. The next prime is 2013203201279. The reversal of 2013203201240 is 421023023102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18743690 + ... + 18850790.

It is an arithmetic number, because the mean of its divisors is an integer number (23423207400).

Almost surely, 22013203201240 is an apocalyptic number.

2013203201240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013203201240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2998170547200).

2013203201240 is an abundant number, since it is smaller than the sum of its proper divisors (3983137893160).

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

2013203201240 is a wasteful number, since it uses less digits than its factorization.

2013203201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107506 (or 107502 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2013203201240 its reverse (421023023102), we get a palindrome (2434226224342).

The spelling of 2013203201240 in words is "two trillion, thirteen billion, two hundred three million, two hundred one thousand, two hundred forty".