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130723984 = 2444318443
BaseRepresentation
bin1111100101010…
…11000010010000
3100002222110121001
413302223002100
5231431131414
620545511344
73145064326
oct762530220
9302873531
10130723984
1167876956
1237942554
1321110191
141350bd16
15b723074
hex7cab090

130723984 has 20 divisors (see below), whose sum is σ = 253863216. Its totient is φ = 65210912.

The previous prime is 130723979. The next prime is 130723991. The reversal of 130723984 is 489327031.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134 + ... + 16309.

Almost surely, 2130723984 is an apocalyptic number.

It is an amenable number.

130723984 is a deficient number, since it is larger than the sum of its proper divisors (123139232).

130723984 is a wasteful number, since it uses less digits than its factorization.

130723984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18894 (or 18888 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 130723984 is about 11433.4589691834. The cubic root of 130723984 is about 507.5183605352.

The spelling of 130723984 in words is "one hundred thirty million, seven hundred twenty-three thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 443 886 1772 3544 7088 18443 36886 73772 147544 295088 8170249 16340498 32680996 65361992 130723984