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58016989 = 402714407
BaseRepresentation
bin1101110101010…
…0010011011101
311001011120100101
43131110103131
5104323020424
65431301101
71303064512
oct335242335
9131146311
1058016989
112a827028
121751a791
13c0344a4
1479c3309
155160344
hex37544dd

58016989 has 4 divisors (see below), whose sum is σ = 58035424. Its totient is φ = 57998556.

The previous prime is 58016983. The next prime is 58016993. The reversal of 58016989 is 98961085.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 58016989 - 25 = 58016957 is a prime.

It is a super-2 number, since 2×580169892 = 6731942025252242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58016983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3177 + ... + 11230.

It is an arithmetic number, because the mean of its divisors is an integer number (14508856).

Almost surely, 258016989 is an apocalyptic number.

It is an amenable number.

58016989 is a deficient number, since it is larger than the sum of its proper divisors (18435).

58016989 is a wasteful number, since it uses less digits than its factorization.

58016989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18434.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 58016989 is about 7616.8884066921. Note that the first 3 decimals coincide. The cubic root of 58016989 is about 387.1254548119.

The spelling of 58016989 in words is "fifty-eight million, sixteen thousand, nine hundred eighty-nine".

Divisors: 1 4027 14407 58016989