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527982991 = 1779393137
BaseRepresentation
bin11111011110000…
…110000110001111
31100210111022111121
4133132012012033
52040130423431
6124220301411
716040532004
oct3736060617
91323438447
10527982991
1125103a488
121289a1867
1385501c93
145019b8ab
1531544611
hex1f78618f

527982991 has 8 divisors (see below), whose sum is σ = 566118720. Its totient is φ = 490633728.

The previous prime is 527982989. The next prime is 527982997. The reversal of 527982991 is 199289725.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 527982991 - 21 = 527982989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (527982997) 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 7 ways as a sum of consecutive naturals, for example, 195226 + ... + 197911.

It is an arithmetic number, because the mean of its divisors is an integer number (70764840).

Almost surely, 2527982991 is an apocalyptic number.

527982991 is a deficient number, since it is larger than the sum of its proper divisors (38135729).

527982991 is a wasteful number, since it uses less digits than its factorization.

527982991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393233.

The product of its digits is 816480, while the sum is 52.

The square root of 527982991 is about 22977.8804723151. The cubic root of 527982991 is about 808.2393250601.

The spelling of 527982991 in words is "five hundred twenty-seven million, nine hundred eighty-two thousand, nine hundred ninety-one".

Divisors: 1 17 79 1343 393137 6683329 31057823 527982991