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58129831 = 199329167
BaseRepresentation
bin1101110110111…
…1110110100111
311001101022010201
43131233312213
5104340123311
65433531331
71304044504
oct335576647
9131338121
1058129831
112a8a3891
1217573b47
13c073966
147a124ab
1551839c1
hex376fda7

58129831 has 4 divisors (see below), whose sum is σ = 58160992. Its totient is φ = 58098672.

The previous prime is 58129823. The next prime is 58129837. The reversal of 58129831 is 13892185.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 58129831 - 23 = 58129823 is a prime.

It is a super-2 number, since 2×581298312 = 6758154504177122, 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 (58129837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12591 + ... + 16576.

It is an arithmetic number, because the mean of its divisors is an integer number (14540248).

Almost surely, 258129831 is an apocalyptic number.

58129831 is a deficient number, since it is larger than the sum of its proper divisors (31161).

58129831 is a wasteful number, since it uses less digits than its factorization.

58129831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31160.

The product of its digits is 17280, while the sum is 37.

The square root of 58129831 is about 7624.2921638668. The cubic root of 58129831 is about 387.3762762830.

The spelling of 58129831 in words is "fifty-eight million, one hundred twenty-nine thousand, eight hundred thirty-one".

Divisors: 1 1993 29167 58129831