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60857500081 = 7107211385079
BaseRepresentation
bin111000101011011000…
…111100000110110001
312211002021010022201111
4320223120330012301
51444114010000311
643542455233321
74253051133640
oct705330740661
9184067108644
1060857500081
112389a521614
12b965078841
13597b2c31a1
142d34709357
1518b2b86d21
hexe2b63c1b1

60857500081 has 16 divisors (see below), whose sum is σ = 70534333440. Its totient is φ = 51431017680.

The previous prime is 60857500051. The next prime is 60857500097. The reversal of 60857500081 is 18000575806.

60857500081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 60857500081 - 215 = 60857467313 is a prime.

It is a super-2 number, since 2×608575000812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60857500051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34501 + ... + 350578.

It is an arithmetic number, because the mean of its divisors is an integer number (4408395840).

Almost surely, 260857500081 is an apocalyptic number.

It is an amenable number.

60857500081 is a deficient number, since it is larger than the sum of its proper divisors (9676833359).

60857500081 is a wasteful number, since it uses less digits than its factorization.

60857500081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385404.

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 60857500081 in words is "sixty billion, eight hundred fifty-seven million, five hundred thousand, eighty-one".

Divisors: 1 7 107 211 749 1477 22577 158039 385079 2695553 41203453 81251669 288424171 568761683 8693928583 60857500081