Search a number
-
+
131103310 = 25135917093
BaseRepresentation
bin1111101000001…
…11101001001110
3100010200201221011
413310013221032
5232030301220
621001555434
73151234252
oct764075116
9303621834
10131103310
1168005948
1237aa5b7a
1321213a30
14135aa262
15b79a65a
hex7d07a4e

131103310 has 32 divisors (see below), whose sum is σ = 258461280. Its totient is φ = 47584128.

The previous prime is 131103299. The next prime is 131103311. The reversal of 131103310 is 13301131.

It is a happy number.

It is a super-2 number, since 2×1311033102 = 34376155785912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877 + ... + 16216.

It is an arithmetic number, because the mean of its divisors is an integer number (8076915).

Almost surely, 2131103310 is an apocalyptic number.

131103310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131103310 is a deficient number, since it is larger than the sum of its proper divisors (127357970).

131103310 is a wasteful number, since it uses less digits than its factorization.

131103310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17172.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131103310 is about 11450.0353711244. The cubic root of 131103310 is about 508.0087806158.

Adding to 131103310 its reverse (13301131), we get a palindrome (144404441).

The spelling of 131103310 in words is "one hundred thirty-one million, one hundred three thousand, three hundred ten".

Divisors: 1 2 5 10 13 26 59 65 118 130 295 590 767 1534 3835 7670 17093 34186 85465 170930 222209 444418 1008487 1111045 2016974 2222090 5042435 10084870 13110331 26220662 65551655 131103310