Search a number
-
+
2851072 = 2873743
BaseRepresentation
bin1010111000000100000000
312100211221021
422320010000
51212213242
6141035224
733143110
oct12700400
95324837
102851072
111678064
12b55b14
1378a933
14543040
153b4b67
hex2b8100

2851072 has 72 divisors (see below), whose sum is σ = 6835136. Its totient is φ = 1161216.

The previous prime is 2851061. The next prime is 2851081. The reversal of 2851072 is 2701582.

It is a super-2 number, since 2×28510722 = 16257223098368, which contains 22 as substring.

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, 66283 + ... + 66325.

22851072 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 2851072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3417568).

2851072 is an abundant number, since it is smaller than the sum of its proper divisors (3984064).

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

2851072 is an equidigital number, since it uses as much as digits as its factorization.

2851072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2851072 is about 1688.5117707615. The cubic root of 2851072 is about 141.7977680656.

It can be divided in two parts, 28510 and 72, that added together give a palindrome (28582).

The spelling of 2851072 in words is "two million, eight hundred fifty-one thousand, seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 37 43 56 64 74 86 112 128 148 172 224 256 259 296 301 344 448 518 592 602 688 896 1036 1184 1204 1376 1591 1792 2072 2368 2408 2752 3182 4144 4736 4816 5504 6364 8288 9472 9632 11008 11137 12728 16576 19264 22274 25456 33152 38528 44548 50912 66304 77056 89096 101824 178192 203648 356384 407296 712768 1425536 2851072