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213141377 = 465145827
BaseRepresentation
bin11001011010001…
…00011110000001
3112212001201000002
430231010132001
5414031011002
633052205345
75165446301
oct1455043601
9485051002
10213141377
11aa3492a9
125b469855
1335208977
1420443601
1513aa3002
hexcb44781

213141377 has 4 divisors (see below), whose sum is σ = 213191856. Its totient is φ = 213090900.

The previous prime is 213141367. The next prime is 213141389. The reversal of 213141377 is 773141312.

It is a happy number.

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 213141377 - 222 = 208947073 is a prime.

It is a super-2 number, since 2×2131413772 = 90858493178912258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213141317) 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, 18263 + ... + 27564.

It is an arithmetic number, because the mean of its divisors is an integer number (53297964).

Almost surely, 2213141377 is an apocalyptic number.

It is an amenable number.

213141377 is a deficient number, since it is larger than the sum of its proper divisors (50479).

213141377 is an equidigital number, since it uses as much as digits as its factorization.

213141377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50478.

The product of its digits is 3528, while the sum is 29.

The square root of 213141377 is about 14599.3622120968. The cubic root of 213141377 is about 597.3413636735.

Adding to 213141377 its reverse (773141312), we get a palindrome (986282689).

The spelling of 213141377 in words is "two hundred thirteen million, one hundred forty-one thousand, three hundred seventy-seven".

Divisors: 1 4651 45827 213141377