Search a number
-
+
31110203241 = 32132910785691
BaseRepresentation
bin11100111110010100…
…000000011101101001
32222022010100001220200
4130332110000131221
51002203203000431
622143011342413
72150640235665
oct347624003551
988263301820
1031110203241
1112214998177
1260428b1a09
132c1a3a8cb0
141711a818a5
15c21327ee6
hex73e500769

31110203241 has 48 divisors (see below), whose sum is σ = 50530858560. Its totient is φ = 18311610240.

The previous prime is 31110203237. The next prime is 31110203291. The reversal of 31110203241 is 14230201113.

31110203241 is a `hidden beast` number, since 311 + 10 + 20 + 324 + 1 = 666.

It is not a de Polignac number, because 31110203241 - 22 = 31110203237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31110203221) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 320206 + ... + 405896.

It is an arithmetic number, because the mean of its divisors is an integer number (1052726220).

Almost surely, 231110203241 is an apocalyptic number.

It is an amenable number.

31110203241 is a deficient number, since it is larger than the sum of its proper divisors (19420655319).

31110203241 is a wasteful number, since it uses less digits than its factorization.

31110203241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85846 (or 85843 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31110203241 its reverse (14230201113), we get a palindrome (45340404354).

The spelling of 31110203241 in words is "thirty-one billion, one hundred ten million, two hundred three thousand, two hundred forty-one".

Divisors: 1 3 9 13 29 39 87 107 117 261 321 377 963 1131 1391 3103 3393 4173 9309 12519 27927 40339 85691 121017 257073 363051 771219 1113983 2485039 3341949 7455117 9168937 10025847 22365351 27506811 32305507 82520433 96916521 119196181 265899173 290749563 357588543 797697519 1072765629 2393092557 3456689249 10370067747 31110203241