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313120004244020 = 22517920941188953
BaseRepresentation
bin100011100110001111110111…
…0101000000000001000110100
31112001122222110110121100022222
41013030133232220000020310
5312020124232041302040
63025541202200141512
7122645113413501221
oct10714375650001064
91461588413540288
10313120004244020
11908514a2412996
122b150907a67898
131059412210223c
14574713658a948
15262ee83538bb5
hex11cc7eea00234

313120004244020 has 24 divisors (see below), whose sum is σ = 696231538849224. Its totient is φ = 117880472185856.

The previous prime is 313120004244017. The next prime is 313120004244029. The reversal of 313120004244020 is 20442400021313.

It can be written as a sum of positive squares in 4 ways, for example, as 132510810459556 + 180609193784464 = 11511334^2 + 13439092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313120004244029) 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, 460470594137 + ... + 460470594816.

It is an arithmetic number, because the mean of its divisors is an integer number (29009647452051).

Almost surely, 2313120004244020 is an apocalyptic number.

It is an amenable number.

313120004244020 is an abundant number, since it is smaller than the sum of its proper divisors (383111534605204).

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

313120004244020 is a wasteful number, since it uses less digits than its factorization.

313120004244020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920941188979 (or 920941188977 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 313120004244020 its reverse (20442400021313), we get a palindrome (333562404265333).

The spelling of 313120004244020 in words is "three hundred thirteen trillion, one hundred twenty billion, four million, two hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 920941188953 1841882377906 3683764755812 4604705944765 9209411889530 15656000212201 18418823779060 31312000424402 62624000848804 78280001061005 156560002122010 313120004244020