Search a number
-
+
28807313682 = 2372530327107
BaseRepresentation
bin11010110101000011…
…001011100100010010
32202100122001011022210
4122311003023210102
5432444133014212
621122304412550
72036605061160
oct326503134422
982318034283
1028807313682
1111242a83164
1256bb617156
132941261854
141573ca0230
15b3908553c
hex6b50cb912

28807313682 has 32 divisors (see below), whose sum is σ = 65850319872. Its totient is φ = 8230032144.

The previous prime is 28807313653. The next prime is 28807313693. The reversal of 28807313682 is 28631370882.

It is a super-2 number, since 2×288073136822 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049173 + ... + 1076279.

It is an arithmetic number, because the mean of its divisors is an integer number (2057822496).

Almost surely, 228807313682 is an apocalyptic number.

28807313682 is an abundant number, since it is smaller than the sum of its proper divisors (37043006190).

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

28807313682 is a wasteful number, since it uses less digits than its factorization.

28807313682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52422.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 28807313682 in words is "twenty-eight billion, eight hundred seven million, three hundred thirteen thousand, six hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 25303 27107 50606 54214 75909 81321 151818 162642 177121 189749 354242 379498 531363 569247 1062726 1138494 685888421 1371776842 2057665263 4115330526 4801218947 9602437894 14403656841 28807313682