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2856030 = 235313783
BaseRepresentation
bin1010111001010001011110
312101002201220
422321101132
51212343110
6141114210
733163422
oct12712136
95332656
102856030
111680861
12b58966
1378cc78
14544b82
153b6370
hex2b945e

2856030 has 64 divisors (see below), whose sum is σ = 7354368. Its totient is φ = 708480.

The previous prime is 2856001. The next prime is 2856037. The reversal of 2856030 is 306582.

2856030 is nontrivially palindromic in base 11.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34369 + ... + 34451.

It is an arithmetic number, because the mean of its divisors is an integer number (114912).

22856030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3677184).

2856030 is an abundant number, since it is smaller than the sum of its proper divisors (4498338).

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

2856030 is a wasteful number, since it uses less digits than its factorization.

2856030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2856030 is about 1689.9792898139. The cubic root of 2856030 is about 141.8799156700.

The spelling of 2856030 in words is "two million, eight hundred fifty-six thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 31 37 62 74 83 93 111 155 166 185 186 222 249 310 370 415 465 498 555 830 930 1110 1147 1245 2294 2490 2573 3071 3441 5146 5735 6142 6882 7719 9213 11470 12865 15355 15438 17205 18426 25730 30710 34410 38595 46065 77190 92130 95201 190402 285603 476005 571206 952010 1428015 2856030