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830827820 = 225192186389
BaseRepresentation
bin110001100001010…
…110110100101100
32010220100102111202
4301201112310230
53200142442240
6214235305032
726405630354
oct6141266454
92126312452
10830827820
11396a87269
121b22ab178
131031878c4
147c4b1b64
154ce16315
hex31856d2c

830827820 has 24 divisors (see below), whose sum is σ = 1836567600. Its totient is φ = 314839872.

The previous prime is 830827817. The next prime is 830827831. The reversal of 830827820 is 28728038.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092815 + ... + 1093574.

It is an arithmetic number, because the mean of its divisors is an integer number (76523650).

Almost surely, 2830827820 is an apocalyptic number.

It is an amenable number.

830827820 is an abundant number, since it is smaller than the sum of its proper divisors (1005739780).

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

830827820 is a wasteful number, since it uses less digits than its factorization.

830827820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186417 (or 2186415 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 830827820 is about 28824.0840270771. The cubic root of 830827820 is about 940.0919707809.

The spelling of 830827820 in words is "eight hundred thirty million, eight hundred twenty-seven thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 2186389 4372778 8745556 10931945 21863890 41541391 43727780 83082782 166165564 207706955 415413910 830827820