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20152054333 = 41274882979
BaseRepresentation
bin10010110001001001…
…111111001000111101
31221000102122102120201
4102301021333020331
5312232411214313
613131400243501
71312246430665
oct226111771075
957012572521
1020152054333
118601344764
123aa4a70591
131b92045908
14d925871a5
157ce2a40dd
hex4b127f23d

20152054333 has 4 divisors (see below), whose sum is σ = 20156941440. Its totient is φ = 20147167228.

The previous prime is 20152054331. The next prime is 20152054357. The reversal of 20152054333 is 33345025102.

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: 33345025102 = 216672512551.

It is a cyclic number.

It is not a de Polignac number, because 20152054333 - 21 = 20152054331 is a prime.

It is a super-2 number, since 2×201520543332 (a number of 21 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 (20152054331) 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, 2437363 + ... + 2445616.

It is an arithmetic number, because the mean of its divisors is an integer number (5039235360).

Almost surely, 220152054333 is an apocalyptic number.

It is an amenable number.

20152054333 is a deficient number, since it is larger than the sum of its proper divisors (4887107).

20152054333 is an equidigital number, since it uses as much as digits as its factorization.

20152054333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887106.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 20152054333 its reverse (33345025102), we get a palindrome (53497079435).

The spelling of 20152054333 in words is "twenty billion, one hundred fifty-two million, fifty-four thousand, three hundred thirty-three".

Divisors: 1 4127 4882979 20152054333