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52309992672 = 2533727193181
BaseRepresentation
bin110000101101111010…
…110010010011100000
312000000120110221212000
4300231322302103200
51324112324231142
640010400404000
73531201413160
oct605572622340
9160016427760
1052309992672
1120203699803
12a17a616600
134c185032b2
1427634405a0
15156258c14c
hexc2deb24e0

52309992672 has 192 divisors, whose sum is σ = 174485606400. Its totient is φ = 14935518720.

The previous prime is 52309992641. The next prime is 52309992673. The reversal of 52309992672 is 27629990325.

52309992672 is a `hidden beast` number, since 523 + 0 + 9 + 99 + 26 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52309992673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16442922 + ... + 16446102.

It is an arithmetic number, because the mean of its divisors is an integer number (908779200).

Almost surely, 252309992672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52309992672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87242803200).

52309992672 is an abundant number, since it is smaller than the sum of its proper divisors (122175613728).

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

52309992672 is a wasteful number, since it uses less digits than its factorization.

52309992672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926 (or 5912 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 52309992672 in words is "fifty-two billion, three hundred nine million, nine hundred ninety-two thousand, six hundred seventy-two".