Search a number
-
+
830355285 = 3555357019
BaseRepresentation
bin110001011111100…
…011011101010101
32010212110102022110
4301133203131111
53200032332120
6214221221233
726401621614
oct6137433525
92125412273
10830355285
11396794241
121b2101819
131030507b6
147c3cb87b
154cd712e0
hex317e3755

830355285 has 8 divisors (see below), whose sum is σ = 1328568480. Its totient is φ = 442856144.

The previous prime is 830355283. The next prime is 830355307. The reversal of 830355285 is 582553038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 830355285 - 21 = 830355283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830355283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27678495 + ... + 27678524.

It is an arithmetic number, because the mean of its divisors is an integer number (166071060).

Almost surely, 2830355285 is an apocalyptic number.

It is an amenable number.

830355285 is a deficient number, since it is larger than the sum of its proper divisors (498213195).

830355285 is a wasteful number, since it uses less digits than its factorization.

830355285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55357027.

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 830355285 is about 28815.8859832558. The cubic root of 830355285 is about 939.9137105792.

The spelling of 830355285 in words is "eight hundred thirty million, three hundred fifty-five thousand, two hundred eighty-five".

Divisors: 1 3 5 15 55357019 166071057 276785095 830355285