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7984768916 = 223151763337
BaseRepresentation
bin1110110111110110…
…11110011110010100
3202121110202021210002
413123323132132110
5112323100101131
63400153150432
7401604262445
oct73373363624
922543667702
107984768916
113428215083
12166a0bb418
139a333c547
1455a6612cc
1531aedc6cb
hex1dbede794

7984768916 has 12 divisors (see below), whose sum is σ = 13974009588. Its totient is φ = 3992194752.

The previous prime is 7984768907. The next prime is 7984768919. The reversal of 7984768916 is 6198674897.

It can be written as a sum of positive squares in 2 ways, for example, as 1513210000 + 6471558916 = 38900^2 + 80446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7984768919) 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, 94400 + ... + 157736.

It is an arithmetic number, because the mean of its divisors is an integer number (1164500799).

Almost surely, 27984768916 is an apocalyptic number.

It is an amenable number.

7984768916 is a deficient number, since it is larger than the sum of its proper divisors (5989240672).

7984768916 is a wasteful number, since it uses less digits than its factorization.

7984768916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94858 (or 94856 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 65.

The square root of 7984768916 is about 89357.5341871070. The cubic root of 7984768916 is about 1998.7299366403.

The spelling of 7984768916 in words is "seven billion, nine hundred eighty-four million, seven hundred sixty-eight thousand, nine hundred sixteen".

Divisors: 1 2 4 31517 63034 63337 126068 126674 253348 1996192229 3992384458 7984768916