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858130 = 257132341
BaseRepresentation
bin11010001100000010010
31121121010121
43101200102
5204430010
630220454
710202560
oct3214022
91547117
10858130
115367a9
1235472a
13240790
14184a30
1511e3da
hexd1812

858130 has 64 divisors (see below), whose sum is σ = 2032128. Its totient is φ = 253440.

The previous prime is 858127. The next prime is 858149. The reversal of 858130 is 31858.

It is a junction number, because it is equal to n+sod(n) for n = 858095 and 858104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20910 + ... + 20950.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2858130 is an apocalyptic number.

858130 is an abundant number, since it is smaller than the sum of its proper divisors (1173998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

858130 is a wasteful number, since it uses less digits than its factorization.

858130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 858130 is about 926.3530644414. The cubic root of 858130 is about 95.0278773220.

Adding to 858130 its reverse (31858), we get a palindrome (889988).

The spelling of 858130 in words is "eight hundred fifty-eight thousand, one hundred thirty".

Divisors: 1 2 5 7 10 13 14 23 26 35 41 46 65 70 82 91 115 130 161 182 205 230 287 299 322 410 455 533 574 598 805 910 943 1066 1435 1495 1610 1886 2093 2665 2870 2990 3731 4186 4715 5330 6601 7462 9430 10465 12259 13202 18655 20930 24518 33005 37310 61295 66010 85813 122590 171626 429065 858130