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68756748115 = 5111773536629
BaseRepresentation
bin100000000001000111…
…0001011011101010011
320120110202221200220111
41000002032023131103
52111303211414430
651330355422151
74652566500406
oct1000216133523
9216422850814
1068756748115
1127183434580
12113aa5b4957
1366399bb453
143483867d3d
151bc63cec2a
hex100238b753

68756748115 has 16 divisors (see below), whose sum is σ = 95303472480. Its totient is φ = 47063441920.

The previous prime is 68756748101. The next prime is 68756748157. The reversal of 68756748115 is 51184765786.

It is not a de Polignac number, because 68756748115 - 217 = 68756617043 is a prime.

It is a super-2 number, since 2×687567481152 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68756748115.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36767380 + ... + 36769249.

It is an arithmetic number, because the mean of its divisors is an integer number (5956467030).

Almost surely, 268756748115 is an apocalyptic number.

68756748115 is a deficient number, since it is larger than the sum of its proper divisors (26546724365).

68756748115 is a wasteful number, since it uses less digits than its factorization.

68756748115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73536662.

The product of its digits is 11289600, while the sum is 58.

The spelling of 68756748115 in words is "sixty-eight billion, seven hundred fifty-six million, seven hundred forty-eight thousand, one hundred fifteen".

Divisors: 1 5 11 17 55 85 187 935 73536629 367683145 808902919 1250122693 4044514595 6250613465 13751349623 68756748115