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3084820 = 2251743211
BaseRepresentation
bin1011110001001000010100
312210201120121
423301020110
51242203240
6150041324
735135434
oct13611024
95721517
103084820
111817742
121049244
1384014b
145a42c4
1540e04a
hex2f1214

3084820 has 48 divisors (see below), whose sum is σ = 7051968. Its totient is φ = 1128960.

The previous prime is 3084797. The next prime is 3084833. The reversal of 3084820 is 284803.

3084820 = T151 + T152 + ... + T279.

It is a super-2 number, since 2×30848202 = 19032228864800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14515 + ... + 14725.

It is an arithmetic number, because the mean of its divisors is an integer number (146916).

Almost surely, 23084820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3084820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3525984).

3084820 is an abundant number, since it is smaller than the sum of its proper divisors (3967148).

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

3084820 is a wasteful number, since it uses less digits than its factorization.

3084820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 3084820 is about 1756.3655655928. The cubic root of 3084820 is about 145.5715845405.

The spelling of 3084820 in words is "three million, eighty-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 43 68 85 86 170 172 211 215 340 422 430 731 844 860 1055 1462 2110 2924 3587 3655 4220 7174 7310 9073 14348 14620 17935 18146 35870 36292 45365 71740 90730 154241 181460 308482 616964 771205 1542410 3084820