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2068742751 = 323127236077
BaseRepresentation
bin111101101001110…
…1000001001011111
312100011201000112220
41323103220021133
513214044232001
6541140200423
7102160010655
oct17323501137
95304630486
102068742751
1197182a059
12498999113
1326c79584a
14158a70dd5
15c1940c36
hex7b4e825f

2068742751 has 16 divisors (see below), whose sum is σ = 2900926464. Its totient is φ = 1308805344.

The previous prime is 2068742737. The next prime is 2068742761. The reversal of 2068742751 is 1572478602.

It is not a de Polignac number, because 2068742751 - 29 = 2068742239 is a prime.

It is a super-3 number, since 3×20687427513 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068742761) 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, 109276 + ... + 126801.

It is an arithmetic number, because the mean of its divisors is an integer number (181307904).

Almost surely, 22068742751 is an apocalyptic number.

2068742751 is a deficient number, since it is larger than the sum of its proper divisors (832183713).

2068742751 is a wasteful number, since it uses less digits than its factorization.

2068742751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236230.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 2068742751 is about 45483.4338083659. The cubic root of 2068742751 is about 1274.1938260861.

The spelling of 2068742751 in words is "two billion, sixty-eight million, seven hundred forty-two thousand, seven hundred fifty-one".

Divisors: 1 3 23 69 127 381 2921 8763 236077 708231 5429771 16289313 29981779 89945337 689580917 2068742751