Search a number
-
+
10803988 = 2213207769
BaseRepresentation
bin101001001101…
…101100010100
3202022220021201
4221031230110
510231211423
61023322244
7160555336
oct51155424
922286251
1010803988
11610a218
123750384
1323137c0
141613456
15e362ad
hexa4db14

10803988 has 12 divisors (see below), whose sum is σ = 20361460. Its totient is φ = 4986432.

The previous prime is 10803983. The next prime is 10804007. The reversal of 10803988 is 88930801.

It can be written as a sum of positive squares in 2 ways, for example, as 2862864 + 7941124 = 1692^2 + 2818^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10803983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 103833 + ... + 103936.

Almost surely, 210803988 is an apocalyptic number.

It is an amenable number.

10803988 is a deficient number, since it is larger than the sum of its proper divisors (9557472).

10803988 is a wasteful number, since it uses less digits than its factorization.

10803988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207786 (or 207784 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 10803988 is about 3286.9420439065. The cubic root of 10803988 is about 221.0690938251.

The spelling of 10803988 in words is "ten million, eight hundred three thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13 26 52 207769 415538 831076 2700997 5401994 10803988