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2068727551 = 111012716871
BaseRepresentation
bin111101101001110…
…0100011011111111
312100011200020200221
41323103210123333
513214043240201
6541140002211
7102156615442
oct17323443377
95304606627
102068727551
119718196a0
12498990367
1326c78b957
14158a69659
15c193b4a1
hex7b4e46ff

2068727551 has 16 divisors (see below), whose sum is σ = 2287881216. Its totient is φ = 1854900000.

The previous prime is 2068727477. The next prime is 2068727567. The reversal of 2068727551 is 1557278602.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2068727551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2068727498 and 2068727507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068727251) 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, 297646 + ... + 304516.

It is an arithmetic number, because the mean of its divisors is an integer number (142992576).

Almost surely, 22068727551 is an apocalyptic number.

2068727551 is a deficient number, since it is larger than the sum of its proper divisors (219153665).

2068727551 is a wasteful number, since it uses less digits than its factorization.

2068727551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 2068727551 is about 45483.2667142544. The cubic root of 2068727551 is about 1274.1907053834.

The spelling of 2068727551 in words is "two billion, sixty-eight million, seven hundred twenty-seven thousand, five hundred fifty-one".

Divisors: 1 11 101 271 1111 2981 6871 27371 75581 301081 693971 1862041 7633681 20482451 188066141 2068727551