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13405315242 = 2311203110837
BaseRepresentation
bin11000111110000010…
…01110000010101010
31021121020110120110010
430133001032002222
5204423230041432
610054110232350
7653124204504
oct143701160252
937536416403
1013405315242
115759a50830
1227214b56b6
1313583546c7
14912514d74
15536d153cc
hex31f04e0aa

13405315242 has 16 divisors (see below), whose sum is σ = 29247960672. Its totient is φ = 4062216720.

The previous prime is 13405315241. The next prime is 13405315243. The reversal of 13405315242 is 24251350431.

It is an interprime number because it is at equal distance from previous prime (13405315241) and next prime (13405315243).

It is not an unprimeable number, because it can be changed into a prime (13405315241) 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, 101555353 + ... + 101555484.

It is an arithmetic number, because the mean of its divisors is an integer number (1827997542).

Almost surely, 213405315242 is an apocalyptic number.

13405315242 is an abundant number, since it is smaller than the sum of its proper divisors (15842645430).

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

13405315242 is a wasteful number, since it uses less digits than its factorization.

13405315242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203110853.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13405315242 its reverse (24251350431), we get a palindrome (37656665673).

The spelling of 13405315242 in words is "thirteen billion, four hundred five million, three hundred fifteen thousand, two hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 203110837 406221674 609332511 1218665022 2234219207 4468438414 6702657621 13405315242