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5231772672 = 210372231091
BaseRepresentation
bin1001101111101011…
…01000010000000000
3111111121111120220020
410313311220100000
541203313211142
62223051013440
7243435222360
oct46765502000
914447446806
105231772672
112245221275
12102013a280
13654b8b999
14378b949a0
15209489cec
hex137d68400

5231772672 has 176 divisors, whose sum is σ = 16022802432. Its totient is φ = 1486725120.

The previous prime is 5231772631. The next prime is 5231772677. The reversal of 5231772672 is 2762771325.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (5231772677) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4794847 + ... + 4795937.

Almost surely, 25231772672 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 5231772672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8011401216).

5231772672 is an abundant number, since it is smaller than the sum of its proper divisors (10791029760).

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

5231772672 is a wasteful number, since it uses less digits than its factorization.

5231772672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344 (or 1326 counting only the distinct ones).

The product of its digits is 246960, while the sum is 42.

The square root of 5231772672 is about 72330.9938546402. The cubic root of 5231772672 is about 1735.9996035874. Note that the first 3 decimals are identical.

The spelling of 5231772672 in words is "five billion, two hundred thirty-one million, seven hundred seventy-two thousand, six hundred seventy-two".