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531941479680 = 28351321395897
BaseRepresentation
bin1111011110110100010…
…11101101010100000000
31212212000220202000001110
413233122023231110000
532203404004322210
61044212012003320
753301001654662
oct7573213552400
91785026660043
10531941479680
11195660108996
1287116160540
133b21480a900
141ba63452532
15dc84e10420
hex7bda2ed500

531941479680 has 432 divisors, whose sum is σ = 1853173304640. Its totient is φ = 129975386112.

The previous prime is 531941479673. The next prime is 531941479723. The reversal of 531941479680 is 86974149135.

It is a happy number.

531941479680 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 531941479680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90202492 + ... + 90208388.

It is an arithmetic number, because the mean of its divisors is an integer number (4289753020).

Almost surely, 2531941479680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531941479680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926586652320).

531941479680 is an abundant number, since it is smaller than the sum of its proper divisors (1321231824960).

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

531941479680 is a wasteful number, since it uses less digits than its factorization.

531941479680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 6059 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 531941479680 in words is "five hundred thirty-one billion, nine hundred forty-one million, four hundred seventy-nine thousand, six hundred eighty".