Search a number
-
+
10630280 = 235265757
BaseRepresentation
bin101000100011…
…010010001000
3202000002000002
4220203102020
510210132110
61015502132
7156233033
oct50432210
922002002
1010630280
116000761
123687948
13228270b
1415aa01a
15deeaa5
hexa23488

10630280 has 16 divisors (see below), whose sum is σ = 23918220. Its totient is φ = 4252096.

The previous prime is 10630271. The next prime is 10630283. The reversal of 10630280 is 8203601.

It can be written as a sum of positive squares in 2 ways, for example, as 10510564 + 119716 = 3242^2 + 346^2 .

It is a super-2 number, since 2×106302802 = 226005705756800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (10630283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132839 + ... + 132918.

Almost surely, 210630280 is an apocalyptic number.

10630280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10630280 is an abundant number, since it is smaller than the sum of its proper divisors (13287940).

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

10630280 is a wasteful number, since it uses less digits than its factorization.

10630280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265768 (or 265764 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 10630280 is about 3260.4110170345. The cubic root of 10630280 is about 219.8778936725.

Adding to 10630280 its reverse (8203601), we get a palindrome (18833881).

The spelling of 10630280 in words is "ten million, six hundred thirty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 265757 531514 1063028 1328785 2126056 2657570 5315140 10630280