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13212202244 = 2224231363207
BaseRepresentation
bin11000100111000001…
…00011010100000100
31021002210002102012212
430103200203110010
5204024310432434
610023011202552
7645260603033
oct142340432404
937083072185
1013212202244
11566aa4210a
1226888a6458
13132733c067
148d4a0671a
15524dbb8ce
hex313823504

13212202244 has 12 divisors (see below), whose sum is σ = 23130913344. Its totient is φ = 6603369864.

The previous prime is 13212202189. The next prime is 13212202247. The reversal of 13212202244 is 44220221231.

It is not an unprimeable number, because it can be changed into a prime (13212202247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671912 + ... + 691295.

It is an arithmetic number, because the mean of its divisors is an integer number (1927576112).

Almost surely, 213212202244 is an apocalyptic number.

It is an amenable number.

13212202244 is a deficient number, since it is larger than the sum of its proper divisors (9918711100).

13212202244 is a wasteful number, since it uses less digits than its factorization.

13212202244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365634 (or 1365632 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 13212202244 its reverse (44220221231), we get a palindrome (57432423475).

The spelling of 13212202244 in words is "thirteen billion, two hundred twelve million, two hundred two thousand, two hundred forty-four".

Divisors: 1 2 4 2423 4846 9692 1363207 2726414 5452828 3303050561 6606101122 13212202244