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58291220 = 22513224197
BaseRepresentation
bin1101111001011…
…1010000010100
311001200111112002
43132113100110
5104410304340
65441214432
71305316151
oct336272024
9131614462
1058291220
112a9a4069
1217631418
13c0cc260
147a55228
1551b6715
hex3797414

58291220 has 24 divisors (see below), whose sum is σ = 131828424. Its totient is φ = 21522816.

The previous prime is 58291193. The next prime is 58291229. The reversal of 58291220 is 2219285.

58291220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1800964 + 56490256 = 1342^2 + 7516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58291229) 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 7 ways as a sum of consecutive naturals, for example, 111839 + ... + 112358.

It is an arithmetic number, because the mean of its divisors is an integer number (5492851).

Almost surely, 258291220 is an apocalyptic number.

It is an amenable number.

58291220 is an abundant number, since it is smaller than the sum of its proper divisors (73537204).

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

58291220 is a wasteful number, since it uses less digits than its factorization.

58291220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224219 (or 224217 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 58291220 is about 7634.8686956620. The cubic root of 58291220 is about 387.7344429376.

The spelling of 58291220 in words is "fifty-eight million, two hundred ninety-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 224197 448394 896788 1120985 2241970 2914561 4483940 5829122 11658244 14572805 29145610 58291220