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58306989 = 3131519901
BaseRepresentation
bin1101111001101…
…1000110101101
311001201022011010
43132123012231
5104411310424
65441415433
71305413136
oct336330655
9131638133
1058306989
112aa049a4
121763a579
13c1064a0
147a5ac8d
1551bb229
hex379b1ad

58306989 has 16 divisors (see below), whose sum is σ = 84285824. Its totient is φ = 35640000.

The previous prime is 58306981. The next prime is 58306999. The reversal of 58306989 is 98960385.

It is not a de Polignac number, because 58306989 - 23 = 58306981 is a prime.

It is a super-2 number, since 2×583069892 = 6799409932492242, 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 (58306981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939 + ... + 10839.

It is an arithmetic number, because the mean of its divisors is an integer number (5267864).

Almost surely, 258306989 is an apocalyptic number.

It is an amenable number.

58306989 is a deficient number, since it is larger than the sum of its proper divisors (25978835).

58306989 is a wasteful number, since it uses less digits than its factorization.

58306989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 58306989 is about 7635.9013220444. The cubic root of 58306989 is about 387.7694032237.

It can be divided in two parts, 58306 and 989, that added together give a palindrome (59295).

The spelling of 58306989 in words is "fifty-eight million, three hundred six thousand, nine hundred eighty-nine".

Divisors: 1 3 13 39 151 453 1963 5889 9901 29703 128713 386139 1495051 4485153 19435663 58306989