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13381800371 = 35573762103
BaseRepresentation
bin11000111011001111…
…00001000110110011
31021112121012220002222
430131213201012303
5204401220102441
610051510231255
7652420266152
oct143547410663
937477186088
1013381800371
11574774a755
12271565552b
131353510494
1490d353599
15534c1cd4b
hex31d9e11b3

13381800371 has 4 divisors (see below), whose sum is σ = 13385566032. Its totient is φ = 13378034712.

The previous prime is 13381800353. The next prime is 13381800391. The reversal of 13381800371 is 17300818331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13381800371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13381800391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877495 + ... + 1884608.

It is an arithmetic number, because the mean of its divisors is an integer number (3346391508).

Almost surely, 213381800371 is an apocalyptic number.

13381800371 is a deficient number, since it is larger than the sum of its proper divisors (3765661).

13381800371 is an equidigital number, since it uses as much as digits as its factorization.

13381800371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765660.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 13381800371 in words is "thirteen billion, three hundred eighty-one million, eight hundred thousand, three hundred seventy-one".

Divisors: 1 3557 3762103 13381800371