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10671988 = 2217156941
BaseRepresentation
bin101000101101…
…011101110100
3202002012012211
4220231131310
510213000423
61020423204
7156465445
oct50553564
922065184
1010671988
11602a028
1236a7b04
1322986b2
1415bb2cc
15e0c10d
hexa2d774

10671988 has 12 divisors (see below), whose sum is σ = 19774692. Its totient is φ = 5022080.

The previous prime is 10671959. The next prime is 10671989. The reversal of 10671988 is 88917601.

It can be written as a sum of positive squares in 2 ways, for example, as 6822544 + 3849444 = 2612^2 + 1962^2 .

It is a super-2 number, since 2×106719882 = 227782655744288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10671988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10671989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78403 + ... + 78538.

It is an arithmetic number, because the mean of its divisors is an integer number (1647891).

Almost surely, 210671988 is an apocalyptic number.

It is an amenable number.

10671988 is a deficient number, since it is larger than the sum of its proper divisors (9102704).

10671988 is a wasteful number, since it uses less digits than its factorization.

10671988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156962 (or 156960 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 10671988 is about 3266.8008815966. The cubic root of 10671988 is about 220.1650827065.

The spelling of 10671988 in words is "ten million, six hundred seventy-one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 17 34 68 156941 313882 627764 2667997 5335994 10671988