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53141421 = 343491839
BaseRepresentation
bin1100101010110…
…1111110101101
310200222212022210
43022231332231
5102101011141
65135001033
71213460154
oct312557655
9120885283
1053141421
1127aa6a33
1215969179
13b018238
1470b459b
1549ea916
hex32adfad

53141421 has 16 divisors (see below), whose sum is σ = 72737280. Its totient is φ = 34492080.

The previous prime is 53141401. The next prime is 53141467. The reversal of 53141421 is 12414135.

It is not a de Polignac number, because 53141421 - 29 = 53140909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53141401) 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 15 ways as a sum of consecutive naturals, for example, 62920 + ... + 63758.

It is an arithmetic number, because the mean of its divisors is an integer number (4546080).

Almost surely, 253141421 is an apocalyptic number.

It is an amenable number.

53141421 is a deficient number, since it is larger than the sum of its proper divisors (19595859).

53141421 is a wasteful number, since it uses less digits than its factorization.

53141421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its digits is 480, while the sum is 21.

The square root of 53141421 is about 7289.8162528283. The cubic root of 53141421 is about 375.9623778752.

Adding to 53141421 its reverse (12414135), we get a palindrome (65555556).

The spelling of 53141421 in words is "fifty-three million, one hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 3 43 129 491 839 1473 2517 21113 36077 63339 108231 411949 1235847 17713807 53141421