Search a number
-
+
10671220 = 2257210889
BaseRepresentation
bin101000101101…
…010001110100
3202002011011101
4220231101310
510212434340
61020415444
7156463300
oct50552164
922064141
1010671220
11602949a
1236a7584
132298241
1415bad00
15e0bc9a
hexa2d474

10671220 has 36 divisors (see below), whose sum is σ = 26070660. Its totient is φ = 3658368.

The previous prime is 10671211. The next prime is 10671233. The reversal of 10671220 is 2217601.

It can be written as a sum of positive squares in 2 ways, for example, as 1695204 + 8976016 = 1302^2 + 2996^2 .

It is a super-2 number, since 2×106712202 = 227749872576800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4465 + ... + 6424.

It is an arithmetic number, because the mean of its divisors is an integer number (724185).

Almost surely, 210671220 is an apocalyptic number.

10671220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10671220 is an abundant number, since it is smaller than the sum of its proper divisors (15399440).

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

10671220 is a wasteful number, since it uses less digits than its factorization.

10671220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10912 (or 10903 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 10671220 is about 3266.6833332908. The cubic root of 10671220 is about 220.1598012525.

Adding to 10671220 its reverse (2217601), we get a palindrome (12888821).

The spelling of 10671220 in words is "ten million, six hundred seventy-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 10889 21778 43556 54445 76223 108890 152446 217780 304892 381115 533561 762230 1067122 1524460 2134244 2667805 5335610 10671220