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58402081 = 411424441
BaseRepresentation
bin1101111011001…
…0010100100001
311001220010121001
43132302110201
5104422331311
65443432001
71306260313
oct336622441
9131803531
1058402081
112aa6a391
1217685601
13c13a85a
147a837b3
1551d94c1
hex37b2521

58402081 has 4 divisors (see below), whose sum is σ = 59826564. Its totient is φ = 56977600.

The previous prime is 58402079. The next prime is 58402087. The reversal of 58402081 is 18020485.

58402081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26873856 + 31528225 = 5184^2 + 5615^2 .

It is a cyclic number.

It is not a de Polignac number, because 58402081 - 21 = 58402079 is a prime.

It is a super-2 number, since 2×584020812 = 6821606130261122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58402087) 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 3 ways as a sum of consecutive naturals, for example, 712180 + ... + 712261.

It is an arithmetic number, because the mean of its divisors is an integer number (14956641).

Almost surely, 258402081 is an apocalyptic number.

It is an amenable number.

58402081 is a deficient number, since it is larger than the sum of its proper divisors (1424483).

58402081 is a wasteful number, since it uses less digits than its factorization.

58402081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424482.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 58402081 is about 7642.1254242521. The cubic root of 58402081 is about 387.9800911774.

It can be divided in two parts, 5840 and 2081, that added together give a square (7921 = 892).

The spelling of 58402081 in words is "fifty-eight million, four hundred two thousand, eighty-one".

Divisors: 1 41 1424441 58402081