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830254621 = 7234322789
BaseRepresentation
bin110001011111001…
…010111000011101
32010212021022020011
4301133022320131
53200021121441
6214215123221
726401022260
oct6137127035
92125238204
10830254621
11396725649
121b2073511
13103016a31
147c3a2cd7
154cd51581
hex317cae1d

830254621 has 24 divisors (see below), whose sum is σ = 1014042240. Its totient is φ = 664636896.

The previous prime is 830254613. The next prime is 830254639. The reversal of 830254621 is 126452038.

It is not a de Polignac number, because 830254621 - 23 = 830254613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830254921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296295 + ... + 299083.

It is an arithmetic number, because the mean of its divisors is an integer number (42251760).

Almost surely, 2830254621 is an apocalyptic number.

It is an amenable number.

830254621 is a deficient number, since it is larger than the sum of its proper divisors (183787619).

830254621 is a wasteful number, since it uses less digits than its factorization.

830254621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 830254621 is about 28814.1392548867. The cubic root of 830254621 is about 939.8757271203.

The spelling of 830254621 in words is "eight hundred thirty million, two hundred fifty-four thousand, six hundred twenty-one".

Divisors: 1 7 23 43 161 301 989 1849 2789 6923 12943 19523 42527 64147 119927 297689 449029 839489 2758321 5156861 19308247 36098027 118607803 830254621