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58131261 = 326459029
BaseRepresentation
bin1101110111000…
…0001100111101
311001101101002200
43131300030331
5104340200021
65433542113
71304051616
oct335601475
9131341080
1058131261
112a8a4971
1217574939
13c0744c6
147a12c0d
155184126
hex377033d

58131261 has 6 divisors (see below), whose sum is σ = 83967390. Its totient is φ = 38754168.

The previous prime is 58131251. The next prime is 58131263. The reversal of 58131261 is 16213185.

It can be written as a sum of positive squares in only one way, i.e., 42968025 + 15163236 = 6555^2 + 3894^2 .

It is not a de Polignac number, because 58131261 - 29 = 58130749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58131263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3229506 + ... + 3229523.

It is an arithmetic number, because the mean of its divisors is an integer number (13994565).

Almost surely, 258131261 is an apocalyptic number.

It is an amenable number.

58131261 is a deficient number, since it is larger than the sum of its proper divisors (25836129).

58131261 is a wasteful number, since it uses less digits than its factorization.

58131261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459035 (or 6459032 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 58131261 is about 7624.3859424874. The cubic root of 58131261 is about 387.3794527561.

The spelling of 58131261 in words is "fifty-eight million, one hundred thirty-one thousand, two hundred sixty-one".

Divisors: 1 3 9 6459029 19377087 58131261