Search a number
-
+
130521710 = 25111279343
BaseRepresentation
bin1111100011110…
…01101001101110
3100002121012010102
413301321221232
5231403143320
620541311102
73143262524
oct761715156
9302535112
10130521710
1167748990
1237865492
132106c0a7
1413498314
15b6d3175
hex7c79a6e

130521710 has 32 divisors (see below), whose sum is σ = 258342912. Its totient is φ = 47083680.

The previous prime is 130521709. The next prime is 130521731. The reversal of 130521710 is 17125031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9299 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (8073216).

Almost surely, 2130521710 is an apocalyptic number.

130521710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130521710 is a deficient number, since it is larger than the sum of its proper divisors (127821202).

130521710 is a wasteful number, since it uses less digits than its factorization.

130521710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 130521710 is about 11424.6098401652. The cubic root of 130521710 is about 507.2564581665.

Adding to 130521710 its reverse (17125031), we get a palindrome (147646741).

The spelling of 130521710 in words is "one hundred thirty million, five hundred twenty-one thousand, seven hundred ten".

Divisors: 1 2 5 10 11 22 55 110 127 254 635 1270 1397 2794 6985 9343 13970 18686 46715 93430 102773 205546 513865 1027730 1186561 2373122 5932805 11865610 13052171 26104342 65260855 130521710