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10000030212 = 2232299578573
BaseRepresentation
bin10010101000000110…
…00101101000000100
3221210220211011120100
421110003011220010
5130440001431322
64332143204100
7502544566014
oct112403055004
927726734510
1010000030212
114271835787
121b30ba6630
13c349cb153
146ac16dc44
153d7db6dac
hex2540c5a04

10000030212 has 36 divisors (see below), whose sum is σ = 26149507020. Its totient is φ = 3218400192.

The previous prime is 10000030169. The next prime is 10000030213. The reversal of 10000030212 is 21203000001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5846743296 + 4153286916 = 76464^2 + 64446^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10000030194 and 10000030203.

It is not an unprimeable number, because it can be changed into a prime (10000030213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4788243 + ... + 4790330.

It is an arithmetic number, because the mean of its divisors is an integer number (726375195).

Almost surely, 210000030212 is an apocalyptic number.

10000030212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10000030212 is an abundant number, since it is smaller than the sum of its proper divisors (16149476808).

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

10000030212 is a wasteful number, since it uses less digits than its factorization.

10000030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9578612 (or 9578607 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 10000030212 its reverse (21203000001), we get a palindrome (31203030213).

The spelling of 10000030212 in words is "ten billion, thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 174 261 348 522 1044 9578573 19157146 28735719 38314292 57471438 86207157 114942876 172414314 277778617 344828628 555557234 833335851 1111114468 1666671702 2500007553 3333343404 5000015106 10000030212