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3155113405 = 5631022681
BaseRepresentation
bin1011110000001111…
…0011010110111101
322010212220100221001
42330003303112331
522430202112110
61241025010301
7141121010233
oct27403632675
98125810831
103155113405
111379a85444
12740783991
133b3883a12
1421d062953
15136ed363a
hexbc0f35bd

3155113405 has 4 divisors (see below), whose sum is σ = 3786136092. Its totient is φ = 2524090720.

The previous prime is 3155113397. The next prime is 3155113417. The reversal of 3155113405 is 5043115513.

Adding to 3155113405 its reverse (5043115513), we get a palindrome (8198228918).

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

It can be written as a sum of positive squares in 2 ways, for example, as 2514922201 + 640191204 = 50149^2 + 25302^2 .

It is not a de Polignac number, because 3155113405 - 23 = 3155113397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315511336 + ... + 315511345.

It is an arithmetic number, because the mean of its divisors is an integer number (946534023).

Almost surely, 23155113405 is an apocalyptic number.

It is an amenable number.

3155113405 is a deficient number, since it is larger than the sum of its proper divisors (631022687).

3155113405 is an equidigital number, since it uses as much as digits as its factorization.

3155113405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631022686.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 3155113405 is about 56170.3961620354. The cubic root of 3155113405 is about 1466.6899785953.

The spelling of 3155113405 in words is "three billion, one hundred fifty-five million, one hundred thirteen thousand, four hundred five".

Divisors: 1 5 631022681 3155113405