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2856036 = 223292283
BaseRepresentation
bin1010111001010001100100
312101002202010
422321101210
51212343121
6141114220
733163431
oct12712144
95332663
102856036
111680867
12b58970
1378cc81
14544b88
153b6376
hex2b9464

2856036 has 36 divisors (see below), whose sum is σ = 6926192. Its totient is φ = 915936.

The previous prime is 2856001. The next prime is 2856037. The reversal of 2856036 is 6306582.

It is a junction number, because it is equal to n+sod(n) for n = 2855994 and 2856012.

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 11 ways as a sum of consecutive naturals, for example, 9951 + ... + 10233.

22856036 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 2856036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3463096).

2856036 is an abundant number, since it is smaller than the sum of its proper divisors (4070156).

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

2856036 is a wasteful number, since it uses less digits than its factorization.

2856036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2856036 is about 1689.9810649827. The cubic root of 2856036 is about 141.8800150245.

The spelling of 2856036 in words is "two million, eight hundred fifty-six thousand, thirty-six".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 283 348 566 841 849 1132 1682 1698 2523 3364 3396 5046 8207 10092 16414 24621 32828 49242 98484 238003 476006 714009 952012 1428018 2856036