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68016133576 = 2319447474563
BaseRepresentation
bin111111010110000100…
…111101010111001000
320111120011100120202101
4333112010331113020
52103244112233301
651125101443144
74625334411346
oct772604752710
9214504316671
1068016133576
1126933374946
12112225704b4
13654c42b8b1
14341335a996
151b81388701
hexfd613d5c8

68016133576 has 16 divisors (see below), whose sum is σ = 134242369200. Its totient is φ = 32218168464.

The previous prime is 68016133571. The next prime is 68016133609. The reversal of 68016133576 is 67533161086.

It is not an unprimeable number, because it can be changed into a prime (68016133571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223737130 + ... + 223737433.

It is an arithmetic number, because the mean of its divisors is an integer number (8390148075).

Almost surely, 268016133576 is an apocalyptic number.

It is an amenable number.

68016133576 is a deficient number, since it is larger than the sum of its proper divisors (66226235624).

68016133576 is a wasteful number, since it uses less digits than its factorization.

68016133576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447474588 (or 447474584 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 68016133576 in words is "sixty-eight billion, sixteen million, one hundred thirty-three thousand, five hundred seventy-six".

Divisors: 1 2 4 8 19 38 76 152 447474563 894949126 1789898252 3579796504 8502016697 17004033394 34008066788 68016133576