Search a number
-
+
10391310 = 2325115459
BaseRepresentation
bin100111101000…
…111100001110
3201112221012100
4213220330032
510130010220
61010415530
7154216236
oct47507416
921487170
1010391310
115958166
1235915a6
1321caa07
141546cc6
15da3d90
hex9e8f0e

10391310 has 24 divisors (see below), whose sum is σ = 27017640. Its totient is φ = 2770992.

The previous prime is 10391299. The next prime is 10391317. The reversal of 10391310 is 1319301.

It is a super-2 number, since 2×103913102 = 215958647032200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10391317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57640 + ... + 57819.

It is an arithmetic number, because the mean of its divisors is an integer number (1125735).

Almost surely, 210391310 is an apocalyptic number.

10391310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10391310 is an abundant number, since it is smaller than the sum of its proper divisors (16626330).

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

10391310 is a wasteful number, since it uses less digits than its factorization.

10391310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115472 (or 115469 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 10391310 is about 3223.5554904484. Note that the first 3 decimals coincide. The cubic root of 10391310 is about 218.2177634906.

It can be divided in two parts, 10391 and 310, that added together give a palindrome (10701).

The spelling of 10391310 in words is "ten million, three hundred ninety-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 115459 230918 346377 577295 692754 1039131 1154590 1731885 2078262 3463770 5195655 10391310