Search a number
-
+
10388900 = 2252103889
BaseRepresentation
bin100111101000…
…010110100100
3201112210220002
4213220112210
510124421100
61010400432
7154206224
oct47502644
921483802
1010388900
115956375
123590118
1321c98a2
141546084
15da32d5
hex9e85a4

10388900 has 18 divisors (see below), whose sum is σ = 22544130. Its totient is φ = 4155520.

The previous prime is 10388891. The next prime is 10388923. The reversal of 10388900 is 988301.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1183744 + 9205156 = 1088^2 + 3034^2 .

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 5 ways as a sum of consecutive naturals, for example, 51845 + ... + 52044.

Almost surely, 210388900 is an apocalyptic number.

10388900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10388900 is an abundant number, since it is smaller than the sum of its proper divisors (12155230).

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

10388900 is a wasteful number, since it uses less digits than its factorization.

10388900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103903 (or 103896 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 10388900 is about 3223.1816579275. The cubic root of 10388900 is about 218.2008921666.

The spelling of 10388900 in words is "ten million, three hundred eighty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 103889 207778 415556 519445 1038890 2077780 2597225 5194450 10388900