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69130872672 = 2531777405241
BaseRepresentation
bin100000001100010000…
…1010110011101100000
320121102211221012022120
41000120201112131200
52113040000411142
651431442304240
74665061502511
oct1003041263540
9217384835276
1069130872672
1127355636924
1211493958080
136699370224
1434bb414a08
151be91817ec
hex1018856760

69130872672 has 48 divisors (see below), whose sum is σ = 181571109552. Its totient is φ = 23030599680.

The previous prime is 69130872637. The next prime is 69130872703. The reversal of 69130872672 is 27627803196.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32029 + ... + 373212.

It is an arithmetic number, because the mean of its divisors is an integer number (3782731449).

Almost surely, 269130872672 is an apocalyptic number.

It is an amenable number.

69130872672 is an abundant number, since it is smaller than the sum of its proper divisors (112440236880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69130872672 is a wasteful number, since it uses less digits than its factorization.

69130872672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407031 (or 407023 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 69130872672 in words is "sixty-nine billion, one hundred thirty million, eight hundred seventy-two thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1777 3554 5331 7108 10662 14216 21324 28432 42648 56864 85296 170592 405241 810482 1215723 1620964 2431446 3241928 4862892 6483856 9725784 12967712 19451568 38903136 720113257 1440226514 2160339771 2880453028 4320679542 5760906056 8641359084 11521812112 17282718168 23043624224 34565436336 69130872672