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68788707562 = 2279712296873
BaseRepresentation
bin100000000010000100…
…0000110000011101010
320120120000002102000201
41000010020012003222
52111334402120222
651333500422414
74653435236551
oct1000410060352
9216500072021
1068788707562
112719a483143
12113b9247a0a
1366434cb273
143487bc6d98
151bc90e4427
hex10042060ea

68788707562 has 8 divisors (see below), whose sum is σ = 103219960356. Its totient is φ = 34382054112.

The previous prime is 68788707557. The next prime is 68788707623. The reversal of 68788707562 is 26570788786.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66059794441 + 2728913121 = 257021^2 + 52239^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 68788707494 and 68788707503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6142843 + ... + 6154030.

Almost surely, 268788707562 is an apocalyptic number.

68788707562 is a deficient number, since it is larger than the sum of its proper divisors (34431252794).

68788707562 is a wasteful number, since it uses less digits than its factorization.

68788707562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12299672.

The product of its (nonzero) digits is 63221760, while the sum is 64.

The spelling of 68788707562 in words is "sixty-eight billion, seven hundred eighty-eight million, seven hundred seven thousand, five hundred sixty-two".

Divisors: 1 2 2797 5594 12296873 24593746 34394353781 68788707562