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13203240242 = 2113106354959
BaseRepresentation
bin11000100101111100…
…10111010100110010
31021002011020002122212
430102332113110302
5204020012141432
610022051132122
7645121455533
oct142276272462
937064202585
1013203240242
1156659808a5
1226858a4042
131325521aba
148d375268a
155241eb2b2
hex312f97532

13203240242 has 16 divisors (see below), whose sum is σ = 19999284480. Its totient is φ = 6536924352.

The previous prime is 13203240223. The next prime is 13203240269. The reversal of 13203240242 is 24204230231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212759 + ... + 267717.

It is an arithmetic number, because the mean of its divisors is an integer number (1249955280).

Almost surely, 213203240242 is an apocalyptic number.

13203240242 is a deficient number, since it is larger than the sum of its proper divisors (6796044238).

13203240242 is a wasteful number, since it uses less digits than its factorization.

13203240242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56137.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 13203240242 its reverse (24204230231), we get a palindrome (37407470473).

The spelling of 13203240242 in words is "thirteen billion, two hundred three million, two hundred forty thousand, two hundred forty-two".

Divisors: 1 2 113 226 1063 2126 54959 109918 120119 240238 6210367 12420734 58421417 116842834 6601620121 13203240242