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13331201242 = 289276727067
BaseRepresentation
bin11000110101001100…
…11111110011011010
31021102002000012011011
430122212133303122
5204300241414432
610042501524134
7651234224632
oct143246376332
937362005134
1013331201242
11572112a897
12270071364a
131345ba5478
149067416c2
15530575847
hex31a99fcda

13331201242 has 16 divisors (see below), whose sum is σ = 20229540480. Its totient is φ = 6588080928.

The previous prime is 13331201231. The next prime is 13331201243. The reversal of 13331201242 is 24210213331.

It is not an unprimeable number, because it can be changed into a prime (13331201243) 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, 478993 + ... + 506059.

It is an arithmetic number, because the mean of its divisors is an integer number (1264346280).

Almost surely, 213331201242 is an apocalyptic number.

13331201242 is a deficient number, since it is larger than the sum of its proper divisors (6898339238).

13331201242 is a wasteful number, since it uses less digits than its factorization.

13331201242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29925.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13331201242 its reverse (24210213331), we get a palindrome (37541414573).

The spelling of 13331201242 in words is "thirteen billion, three hundred thirty-one million, two hundred one thousand, two hundred forty-two".

Divisors: 1 2 89 178 2767 5534 27067 54134 246263 492526 2408963 4817926 74894389 149788778 6665600621 13331201242