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161214413 = 385141863
BaseRepresentation
bin10011001101111…
…10111111001101
3102020100112121012
421212332333031
5312232330123
623555215005
73665204603
oct1146767715
9366315535
10161214413
1183001858
1245ba7465
1327527459
14175a7873
15e247378
hex99befcd

161214413 has 4 divisors (see below), whose sum is σ = 161260128. Its totient is φ = 161168700.

The previous prime is 161214407. The next prime is 161214421. The reversal of 161214413 is 314412161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161214413 - 210 = 161213389 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 (161214433) by changing a digit.

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, 17081 + ... + 24782.

It is an arithmetic number, because the mean of its divisors is an integer number (40315032).

Almost surely, 2161214413 is an apocalyptic number.

It is an amenable number.

161214413 is a deficient number, since it is larger than the sum of its proper divisors (45715).

161214413 is an equidigital number, since it uses as much as digits as its factorization.

161214413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45714.

The product of its digits is 576, while the sum is 23.

The square root of 161214413 is about 12697.0237851238. The cubic root of 161214413 is about 544.2535728979.

Adding to 161214413 its reverse (314412161), we get a palindrome (475626574).

The spelling of 161214413 in words is "one hundred sixty-one million, two hundred fourteen thousand, four hundred thirteen".

Divisors: 1 3851 41863 161214413