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58985021 = 9726269
BaseRepresentation
bin1110000100000…
…0101000111101
311002222202020102
43201000220331
5110100010041
65504130445
71314235664
oct341005075
9132882212
1058985021
1130328357
1217906a25
13c2b2ca4
147b95ddb
1552a209b
hex3840a3d

58985021 has 6 divisors (see below), whose sum is σ = 59608890. Its totient is φ = 58367616.

The previous prime is 58985009. The next prime is 58985039. The reversal of 58985021 is 12058985.

It can be written as a sum of positive squares in 3 ways, for example, as 3556996 + 55428025 = 1886^2 + 7445^2 .

It is not a de Polignac number, because 58985021 - 26 = 58984957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58985051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6275 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (9934815).

Almost surely, 258985021 is an apocalyptic number.

It is an amenable number.

58985021 is a deficient number, since it is larger than the sum of its proper divisors (623869).

58985021 is an frugal number, since it uses more digits than its factorization.

58985021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463 (or 6366 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 58985021 is about 7680.1706361252. The cubic root of 58985021 is about 389.2666934919.

The spelling of 58985021 in words is "fifty-eight million, nine hundred eighty-five thousand, twenty-one".

Divisors: 1 97 6269 9409 608093 58985021