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69805485456 = 24372411634441
BaseRepresentation
bin100000100000010111…
…0110010110110010000
320200011212100002002020
41001000232302312100
52120430201013311
652022421451440
75020562556600
oct1010056626620
9220155302066
1069805485456
1127671416453
1211641870b80
1367760610a5
143542c60c00
151c384dbc06
hex1040bb2d90

69805485456 has 240 divisors, whose sum is σ = 216256033728. Its totient is φ = 19334246400.

The previous prime is 69805485437. The next prime is 69805485517. The reversal of 69805485456 is 65458450896.

It is a self number, because there is not a number n which added to its sum of digits gives 69805485456.

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, 15716196 + ... + 15720636.

Almost surely, 269805485456 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 69805485456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108128016864).

69805485456 is an abundant number, since it is smaller than the sum of its proper divisors (146450548272).

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

69805485456 is a wasteful number, since it uses less digits than its factorization.

69805485456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670 (or 4657 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 60.

The spelling of 69805485456 in words is "sixty-nine billion, eight hundred five million, four hundred eighty-five thousand, four hundred fifty-six".