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2661036 = 223779401
BaseRepresentation
bin1010001001101010101100
312000012020220
422021222230
51140123121
6133011340
731422060
oct12115254
95005226
102661036
111558304
12a83b50
137222a1
144d3aa0
153786c6
hex289aac

2661036 has 48 divisors (see below), whose sum is σ = 7203840. Its totient is φ = 748800.

The previous prime is 2661013. The next prime is 2661067. The reversal of 2661036 is 6301662.

It is a super-2 number, since 2×26610362 = 14162225186592, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2660997 and 2661015.

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, 6436 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (150080).

22661036 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 2661036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3601920).

2661036 is an abundant number, since it is smaller than the sum of its proper divisors (4542804).

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

2661036 is a wasteful number, since it uses less digits than its factorization.

2661036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2661036 is about 1631.2682182891. The cubic root of 2661036 is about 138.5745839384.

Adding to 2661036 its reverse (6301662), we get a palindrome (8962698).

The spelling of 2661036 in words is "two million, six hundred sixty-one thousand, thirty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 79 84 158 237 316 401 474 553 802 948 1106 1203 1604 1659 2212 2406 2807 3318 4812 5614 6636 8421 11228 16842 31679 33684 63358 95037 126716 190074 221753 380148 443506 665259 887012 1330518 2661036