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2068618047 = 38321139373
BaseRepresentation
bin111101101001100…
…1001101100111111
312100011110200111020
41323103021230333
513214031234142
6541133355223
7102155651256
oct17323115477
95304420436
102068618047
119717543a1
12498938b13
1326c750b62
14158a3b79d
15c1918cec
hex7b4c9b3f

2068618047 has 16 divisors (see below), whose sum is σ = 2804688768. Its totient is φ = 1355971680.

The previous prime is 2068618039. The next prime is 2068618061. The reversal of 2068618047 is 7408168602.

It is not a de Polignac number, because 2068618047 - 23 = 2068618039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068618087) 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, 32853 + ... + 72225.

It is an arithmetic number, because the mean of its divisors is an integer number (175293048).

Almost surely, 22068618047 is an apocalyptic number.

2068618047 is a deficient number, since it is larger than the sum of its proper divisors (736070721).

2068618047 is a wasteful number, since it uses less digits than its factorization.

2068618047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39670.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 2068618047 is about 45482.0629149558. The cubic root of 2068618047 is about 1274.1682227320.

The spelling of 2068618047 in words is "two billion, sixty-eight million, six hundred eighteen thousand, forty-seven".

Divisors: 1 3 83 211 249 633 17513 39373 52539 118119 3267959 8307703 9803877 24923109 689539349 2068618047