Search a number
-
+
30110212212 = 2236427390413
BaseRepresentation
bin11100000010101101…
…010110000001110100
32212201102200021002220
4130002231112001310
5443131203242322
621455450202340
72114105403153
oct340255260164
985642607086
1030110212212
1111851480103
125a03a233b0
132abb172c22
141658d3759a
15bb364955c
hex702b56074

30110212212 has 24 divisors (see below), whose sum is σ = 70268273376. Its totient is φ = 10035150048.

The previous prime is 30110212207. The next prime is 30110212243. The reversal of 30110212212 is 21221201103.

It is a junction number, because it is equal to n+sod(n) for n = 30110212191 and 30110212200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118083 + ... + 272330.

It is an arithmetic number, because the mean of its divisors is an integer number (2927844724).

Almost surely, 230110212212 is an apocalyptic number.

It is an amenable number.

30110212212 is an abundant number, since it is smaller than the sum of its proper divisors (40158061164).

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

30110212212 is a wasteful number, since it uses less digits than its factorization.

30110212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396847 (or 396845 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30110212212 its reverse (21221201103), we get a palindrome (51331413315).

The spelling of 30110212212 in words is "thirty billion, one hundred ten million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 6427 12854 19281 25708 38562 77124 390413 780826 1171239 1561652 2342478 4684956 2509184351 5018368702 7527553053 10036737404 15055106106 30110212212