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13204454143 = 372571388627
BaseRepresentation
bin11000100110000101…
…11111101011111111
31021002020111202211011
430103002333223333
5204020320013033
610022133140051
7645135002566
oct142302775377
937066452734
1013204454143
11566662a921
12268618a627
13132585849a
148d398abdd
1552438accd
hex3130bfaff

13204454143 has 8 divisors (see below), whose sum is σ = 13614108912. Its totient is φ = 12797577216.

The previous prime is 13204454101. The next prime is 13204454189. The reversal of 13204454143 is 34145440231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13204454143 - 213 = 13204445951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204454443) 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, 684805 + ... + 703822.

It is an arithmetic number, because the mean of its divisors is an integer number (1701763614).

Almost surely, 213204454143 is an apocalyptic number.

13204454143 is a deficient number, since it is larger than the sum of its proper divisors (409654769).

13204454143 is a wasteful number, since it uses less digits than its factorization.

13204454143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388921.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 13204454143 its reverse (34145440231), we get a palindrome (47349894374).

The spelling of 13204454143 in words is "thirteen billion, two hundred four million, four hundred fifty-four thousand, one hundred forty-three".

Divisors: 1 37 257 9509 1388627 51379199 356877139 13204454143