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13203243242 = 272362636547
BaseRepresentation
bin11000100101111100…
…11000000011101010
31021002011020020202222
430102332120003222
5204020012240432
610022051154042
7645121500350
oct142276300352
937064206688
1013203243242
115665983082
1226858a5922
131325523287
148d37537d0
155241ec112
hex312f980ea

13203243242 has 32 divisors (see below), whose sum is σ = 23625603072. Its totient is φ = 5410818864.

The previous prime is 13203243217. The next prime is 13203243253. The reversal of 13203243242 is 24234230231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2013413 + ... + 2019959.

It is an arithmetic number, because the mean of its divisors is an integer number (738300096).

Almost surely, 213203243242 is an apocalyptic number.

13203243242 is a deficient number, since it is larger than the sum of its proper divisors (10422359830).

13203243242 is a wasteful number, since it uses less digits than its factorization.

13203243242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 13203243242 its reverse (24234230231), we get a palindrome (37437473473).

The spelling of 13203243242 in words is "thirteen billion, two hundred three million, two hundred forty-three thousand, two hundred forty-two".

Divisors: 1 2 7 14 23 46 161 322 6263 6547 12526 13094 43841 45829 87682 91658 144049 150581 288098 301162 1008343 1054067 2016686 2108134 41003861 82007722 287027027 574054054 943088803 1886177606 6601621621 13203243242