Search a number
-
+
10249808 = 24640613
BaseRepresentation
bin100111000110…
…011001010000
3201021202002112
4213012121100
510110443213
61003404452
7153056552
oct47063120
921252075
1010249808
115870918
123523728
13217b49a
14150b4d2
15d76ea8
hex9c6650

10249808 has 10 divisors (see below), whose sum is σ = 19859034. Its totient is φ = 5124896.

The previous prime is 10249801. The next prime is 10249817. The reversal of 10249808 is 80894201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9193024 + 1056784 = 3032^2 + 1028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10249801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320291 + ... + 320322.

Almost surely, 210249808 is an apocalyptic number.

It is an amenable number.

10249808 is a deficient number, since it is larger than the sum of its proper divisors (9609226).

10249808 is an equidigital number, since it uses as much as digits as its factorization.

10249808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640621 (or 640615 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 10249808 is about 3201.5321332137. The cubic root of 10249808 is about 217.2227179540. Note that the first 3 decimals are identical.

The spelling of 10249808 in words is "ten million, two hundred forty-nine thousand, eight hundred eight".

Divisors: 1 2 4 8 16 640613 1281226 2562452 5124904 10249808