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35050131221 = 75007161603
BaseRepresentation
bin100000101001001001…
…101000111100010101
310100110201000011001012
4200221021220330111
51033240313144341
624033553542005
72350401125330
oct405111507425
9110421004035
1035050131221
11139569813a6
126962274905
1333c7726a21
1419a7039617
15da21840eb
hex829268f15

35050131221 has 4 divisors (see below), whose sum is σ = 40057292832. Its totient is φ = 30042969612.

The previous prime is 35050131217. The next prime is 35050131257. The reversal of 35050131221 is 12213105053.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12213105053 = 47259853299.

It is a cyclic number.

It is not a de Polignac number, because 35050131221 - 22 = 35050131217 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 (35050131521) 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, 2503580795 + ... + 2503580808.

It is an arithmetic number, because the mean of its divisors is an integer number (10014323208).

Almost surely, 235050131221 is an apocalyptic number.

It is an amenable number.

35050131221 is a deficient number, since it is larger than the sum of its proper divisors (5007161611).

35050131221 is an equidigital number, since it uses as much as digits as its factorization.

35050131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007161610.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 35050131221 its reverse (12213105053), we get a palindrome (47263236274).

The spelling of 35050131221 in words is "thirty-five billion, fifty million, one hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 7 5007161603 35050131221