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20153024141 = 110918172249
BaseRepresentation
bin10010110001001101…
…101011111010001101
31221000111110200220112
4102301031223322031
5312233133233031
613131433125405
71312260610265
oct226115537215
957014420815
1020153024141
118601947358
123aa5259865
131b922c5173
14d9275a7a5
157ce3e662b
hex4b136be8d

20153024141 has 4 divisors (see below), whose sum is σ = 20171197500. Its totient is φ = 20134850784.

The previous prime is 20153024123. The next prime is 20153024197. The reversal of 20153024141 is 14142035102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10618478116 + 9534546025 = 103046^2 + 97645^2 .

It is a cyclic number.

It is not a de Polignac number, because 20153024141 - 222 = 20148829837 is a prime.

It is a super-2 number, since 2×201530241412 (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 (20153023141) 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, 9085016 + ... + 9087233.

It is an arithmetic number, because the mean of its divisors is an integer number (5042799375).

Almost surely, 220153024141 is an apocalyptic number.

It is an amenable number.

20153024141 is a deficient number, since it is larger than the sum of its proper divisors (18173359).

20153024141 is a wasteful number, since it uses less digits than its factorization.

20153024141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18173358.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 20153024141 its reverse (14142035102), we get a palindrome (34295059243).

The spelling of 20153024141 in words is "twenty billion, one hundred fifty-three million, twenty-four thousand, one hundred forty-one".

Divisors: 1 1109 18172249 20153024141