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33055434421 = 35992076419
BaseRepresentation
bin11110110010010000…
…011110011010110101
310011022200122001102221
4132302100132122311
51020144142400141
623104020402341
72250100361632
oct366220363265
9104280561387
1033055434421
1113022a27149
1264a62463b1
13316a3b8469
141858161189
15cd6ebcbd1
hex7b241e6b5

33055434421 has 4 divisors (see below), whose sum is σ = 33147511200. Its totient is φ = 32963357644.

The previous prime is 33055434409. The next prime is 33055434463. The reversal of 33055434421 is 12443455033.

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: 12443455033 = 38333246401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-33055434421 is a prime.

It is a super-2 number, since 2×330554344212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33055434821) 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, 46037851 + ... + 46038568.

It is an arithmetic number, because the mean of its divisors is an integer number (8286877800).

Almost surely, 233055434421 is an apocalyptic number.

It is an amenable number.

33055434421 is a deficient number, since it is larger than the sum of its proper divisors (92076779).

33055434421 is an equidigital number, since it uses as much as digits as its factorization.

33055434421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92076778.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 33055434421 its reverse (12443455033), we get a palindrome (45498889454).

The spelling of 33055434421 in words is "thirty-three billion, fifty-five million, four hundred thirty-four thousand, four hundred twenty-one".

Divisors: 1 359 92076419 33055434421