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103280 = 2451291
BaseRepresentation
bin11001001101110000
312020200012
4121031300
511301110
62114052
7610052
oct311560
9166605
10103280
1170661
124b928
1338018
14298d2
1520905
hex19370

103280 has 20 divisors (see below), whose sum is σ = 240312. Its totient is φ = 41280.

The previous prime is 103237. The next prime is 103289. The reversal of 103280 is 82301.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103280.

It is not an unprimeable number, because it can be changed into a prime (103289) by changing a digit.

103280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566 + ... + 725.

2103280 is an apocalyptic number.

103280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103280 is an abundant number, since it is smaller than the sum of its proper divisors (137032).

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

103280 is a wasteful number, since it uses less digits than its factorization.

103280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 103280 is about 321.3720585241. The cubic root of 103280 is about 46.9179192093.

Adding to 103280 its reverse (82301), we get a palindrome (185581).

It can be divided in two parts, 103 and 280, that added together give a palindrome (383).

The spelling of 103280 in words is "one hundred three thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1291 2582 5164 6455 10328 12910 20656 25820 51640 103280