Search a number
-
+
58427857 = 64279091
BaseRepresentation
bin1101111011100…
…0100111010001
311001221102221201
43132320213101
5104424142412
65444151201
71306425415
oct336704721
9131842851
1058427857
112aa87794
1217698501
13c1494c7
147a8cd45
1551e1e57
hex37b89d1

58427857 has 4 divisors (see below), whose sum is σ = 58443376. Its totient is φ = 58412340.

The previous prime is 58427849. The next prime is 58427867. The reversal of 58427857 is 75872485.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 58427857 - 23 = 58427849 is a prime.

It is a super-2 number, since 2×584278572 = 6827628947224898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58427807) 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, 1882 + ... + 10972.

It is an arithmetic number, because the mean of its divisors is an integer number (14610844).

Almost surely, 258427857 is an apocalyptic number.

It is an amenable number.

58427857 is a deficient number, since it is larger than the sum of its proper divisors (15519).

58427857 is an equidigital number, since it uses as much as digits as its factorization.

58427857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15518.

The product of its digits is 627200, while the sum is 46.

The square root of 58427857 is about 7643.8116800455. The cubic root of 58427857 is about 388.0371616548.

It can be divided in two parts, 584 and 27857, that added together give a triangular number (28441 = T238).

The spelling of 58427857 in words is "fifty-eight million, four hundred twenty-seven thousand, eight hundred fifty-seven".

Divisors: 1 6427 9091 58427857