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5209902931968 = 2133274191549
BaseRepresentation
bin100101111010000011001…
…1010011110000000000000
3200110001200002111212201200
41023310012122132000000
51140324340122310333
615025221340501200
71045255152150000
oct113640632360000
920401602455650
105209902931968
111729564424059
12701869b4a800
132ba3a3c457a7
14140236b60000
15907c527cc13
hex4bd0669e000

5209902931968 has 840 divisors, whose sum is σ = 18493179549000. Its totient is φ = 1409288896512.

The previous prime is 5209902931957. The next prime is 5209902931973. The reversal of 5209902931968 is 8691392099025.

5209902931968 is a `hidden beast` number, since 5 + 209 + 90 + 29 + 319 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3363396858 + ... + 3363398406.

Almost surely, 25209902931968 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 5209902931968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9246589774500).

5209902931968 is an abundant number, since it is smaller than the sum of its proper divisors (13283276617032).

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

5209902931968 is an equidigital number, since it uses as much as digits as its factorization.

5209902931968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 5209902931968 in words is "five trillion, two hundred nine billion, nine hundred two million, nine hundred thirty-one thousand, nine hundred sixty-eight".