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5205213412 = 2271511231129
BaseRepresentation
bin1001101100100000…
…10100000011100100
3111102202112020102221
410312100110003210
541130013312122
62220301442124
7242663404210
oct46620240344
914382466387
105205213412
112231230973
121013270344
1364c51cb49
1437543d940
15206e906c7
hex1364140e4

5205213412 has 24 divisors (see below), whose sum is σ = 10479378560. Its totient is φ = 2216030400.

The previous prime is 5205213367. The next prime is 5205213413. The reversal of 5205213412 is 2143125025.

It is not an unprimeable number, because it can be changed into a prime (5205213413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611337 + ... + 619792.

Almost surely, 25205213412 is an apocalyptic number.

It is an amenable number.

5205213412 is an abundant number, since it is smaller than the sum of its proper divisors (5274165148).

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

5205213412 is a wasteful number, since it uses less digits than its factorization.

5205213412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231291 (or 1231289 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 5205213412 is about 72147.1649616255. The cubic root of 5205213412 is about 1733.0569995216.

Adding to 5205213412 its reverse (2143125025), we get a palindrome (7348338437).

The spelling of 5205213412 in words is "five billion, two hundred five million, two hundred thirteen thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 151 302 604 1057 2114 4228 1231129 2462258 4924516 8617903 17235806 34471612 185900479 371800958 743601916 1301303353 2602606706 5205213412