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34033040221 = 68791494731
BaseRepresentation
bin11111101100100001…
…101111101101011101
310020211211011120111011
4133230201233231131
51024144424241341
623345022055221
72313241032415
oct375441575535
9106754146434
1034033040221
1113484844924
12671971a511
133294ab452b
14190bd1d645
15d42c28b81
hex7ec86fb5d

34033040221 has 4 divisors (see below), whose sum is σ = 34033603744. Its totient is φ = 34032476700.

The previous prime is 34033040213. The next prime is 34033040281. The reversal of 34033040221 is 12204033043.

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: 12204033043 = 76491595507.

It is a cyclic number.

It is not a de Polignac number, because 34033040221 - 23 = 34033040213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34033040192 and 34033040201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34033040281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178575 + ... + 316156.

It is an arithmetic number, because the mean of its divisors is an integer number (8508400936).

Almost surely, 234033040221 is an apocalyptic number.

It is an amenable number.

34033040221 is a deficient number, since it is larger than the sum of its proper divisors (563523).

34033040221 is an equidigital number, since it uses as much as digits as its factorization.

34033040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563522.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 34033040221 its reverse (12204033043), we get a palindrome (46237073264).

The spelling of 34033040221 in words is "thirty-four billion, thirty-three million, forty thousand, two hundred twenty-one".

Divisors: 1 68791 494731 34033040221