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34220021641 = 132632309357
BaseRepresentation
bin11111110111101011…
…000001011110001001
310021022212000012202221
4133313223001132021
51030040311143031
623415341454041
72321001245641
oct376753013611
9107285005687
1034220021641
1113570345823
126770271321
1332c4761020
141928ab3521
15d54360a11
hex7f7ac1789

34220021641 has 4 divisors (see below), whose sum is σ = 36852331012. Its totient is φ = 31587712272.

The previous prime is 34220021623. The next prime is 34220021657. The reversal of 34220021641 is 14612002243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14612002243 = 48109303727.

It can be written as a sum of positive squares in 2 ways, for example, as 23653209616 + 10566812025 = 153796^2 + 102795^2 .

It is a cyclic number.

It is not a de Polignac number, because 34220021641 - 27 = 34220021513 is a prime.

It is a super-2 number, since 2×342200216412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34220021681) 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, 1316154666 + ... + 1316154691.

It is an arithmetic number, because the mean of its divisors is an integer number (9213082753).

Almost surely, 234220021641 is an apocalyptic number.

It is an amenable number.

34220021641 is a deficient number, since it is larger than the sum of its proper divisors (2632309371).

34220021641 is a wasteful number, since it uses less digits than its factorization.

34220021641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632309370.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 34220021641 its reverse (14612002243), we get a palindrome (48832023884).

The spelling of 34220021641 in words is "thirty-four billion, two hundred twenty million, twenty-one thousand, six hundred forty-one".

Divisors: 1 13 2632309357 34220021641