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5231387491296 = 25393775811413
BaseRepresentation
bin100110000100000011011…
…1111100011101111100000
3200112010010101111120112020
41030020012333203233200
51141202340144210141
615043133301301440
71046645441662131
oct114100677435740
920463111446466
105231387491296
11173768994750a
12705a65104880
132bc4190675a5
141412b4289c88
15911314e3266
hex4c206fe3be0

5231387491296 has 48 divisors (see below), whose sum is σ = 13733859003984. Its totient is φ = 1743609565184.

The previous prime is 5231387491271. The next prime is 5231387491327. The reversal of 5231387491296 is 6921947831325.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005515 + ... + 3805898.

It is an arithmetic number, because the mean of its divisors is an integer number (286122062583).

Almost surely, 25231387491296 is an apocalyptic number.

It is an amenable number.

5231387491296 is an abundant number, since it is smaller than the sum of its proper divisors (8502471512688).

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

5231387491296 is a wasteful number, since it uses less digits than its factorization.

5231387491296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820803 (or 5820795 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 5231387491296 in words is "five trillion, two hundred thirty-one billion, three hundred eighty-seven million, four hundred ninety-one thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 9377 18754 28131 37508 56262 75016 112524 150032 225048 300064 450096 900192 5811413 11622826 17434239 23245652 34868478 46491304 69736956 92982608 139473912 185965216 278947824 557895648 54493619701 108987239402 163480859103 217974478804 326961718206 435948957608 653923436412 871897915216 1307846872824 1743795830432 2615693745648 5231387491296