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8075325085781 = 172112251275463
BaseRepresentation
bin111010110000010111011…
…1000100001100001010101
31001120222211021211020011012
41311200232320201201111
52024301231210221111
625101430402022005
71462265040453302
oct165405670414125
931528737736135
108075325085781
1126337a9540048
12aa5076047905
1346766633c435
141dcbc25ba0a9
15e00cece448b
hex7582ee21855

8075325085781 has 8 divisors (see below), whose sum is σ = 8590867170624. Its totient is φ = 7564285552320.

The previous prime is 8075325085739. The next prime is 8075325085897. The reversal of 8075325085781 is 1875805235708.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8075325085781 is a prime.

It is a super-2 number, since 2×80753250857812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8075325085781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8075325085721) 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, 1125634145 + ... + 1125641318.

It is an arithmetic number, because the mean of its divisors is an integer number (1073858396328).

Almost surely, 28075325085781 is an apocalyptic number.

It is an amenable number.

8075325085781 is a deficient number, since it is larger than the sum of its proper divisors (515542084843).

8075325085781 is a wasteful number, since it uses less digits than its factorization.

8075325085781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251275691.

The product of its (nonzero) digits is 18816000, while the sum is 59.

The spelling of 8075325085781 in words is "eight trillion, seventy-five billion, three hundred twenty-five million, eighty-five thousand, seven hundred eighty-one".

Divisors: 1 17 211 3587 2251275463 38271682871 475019122693 8075325085781