Search a number
427858 = 2213929
BaseRepresentation
bin1101000011101010010
3210201220121
41220131102
5102142413
613100454
73431254
oct1503522
9721817
10427858
11272502
1218772a
1311c992
14b1cd4
1586b8d
hex68752

427858 has 4 divisors (see below), whose sum is σ = 641790. Its totient is φ = 213928.

The previous prime is 427849. The next prime is 427859. The reversal of 427858 is 858724.

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

It can be written as a sum of positive squares in only one way, i.e., 316969 + 110889 = 563^2 + 333^2 .

It is a d-powerful number, because it can be written as 44 + 215 + 82 + 72 + 58 + 84 .

It is not an unprimeable number, because it can be changed into a prime (427859) by changing a digit.

427858 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106963 + ... + 106966.

2427858 is an apocalyptic number.

427858 is a deficient number, since it is larger than the sum of its proper divisors (213932).

427858 is a wasteful number, since it uses less digits than its factorization.

427858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213931.

The product of its digits is 17920, while the sum is 34.

The square root of 427858 is about 654.1085536820. The cubic root of 427858 is about 75.3528851715.

The spelling of 427858 in words is "four hundred twenty-seven thousand, eight hundred fifty-eight".

Divisors: 1 2 213929 427858