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53843200381 = 108749533763
BaseRepresentation
bin110010001001010011…
…100000100101111101
312010222102110222102201
4302021103200211331
51340232324403011
640422450351501
73614166436405
oct621123404575
9163872428381
1053843200381
11209200a0413
12a527b8b591
1351010515a9
14286ad09805
151601e95cc1
hexc894e097d

53843200381 has 4 divisors (see below), whose sum is σ = 53892735232. Its totient is φ = 53793665532.

The previous prime is 53843200319. The next prime is 53843200391. The reversal of 53843200381 is 18300234835.

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.

It is a cyclic number.

It is not a de Polignac number, because 53843200381 - 211 = 53843198333 is a prime.

It is a super-2 number, since 2×538432003812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53843200381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53843200391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24765795 + ... + 24767968.

It is an arithmetic number, because the mean of its divisors is an integer number (13473183808).

Almost surely, 253843200381 is an apocalyptic number.

It is an amenable number.

53843200381 is a deficient number, since it is larger than the sum of its proper divisors (49534851).

53843200381 is a wasteful number, since it uses less digits than its factorization.

53843200381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49534850.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 53843200381 in words is "fifty-three billion, eight hundred forty-three million, two hundred thousand, three hundred eighty-one".

Divisors: 1 1087 49533763 53843200381