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431204410421 = 312619775833
BaseRepresentation
bin1100100011001011100…
…10010010010000110101
31112020000101011122212022
412101211302102100311
524031101312113141
6530031555002525
743103435004341
oct6214562222065
91466011148768
10431204410421
11156966714844
126b6a1599445
133187c3b0215
1416c28568621
15b33b12eb4b
hex6465c92435

431204410421 has 24 divisors (see below), whose sum is σ = 457542012312. Its totient is φ = 406216857600.

The previous prime is 431204410391. The next prime is 431204410459. The reversal of 431204410421 is 124014402134.

It can be written as a sum of positive squares in 4 ways, for example, as 37912373521 + 393292036900 = 194711^2 + 627130^2 .

It is not a de Polignac number, because 431204410421 - 214 = 431204394037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431204410471) 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 23 ways as a sum of consecutive naturals, for example, 5648321 + ... + 5724153.

It is an arithmetic number, because the mean of its divisors is an integer number (19064250513).

Almost surely, 2431204410421 is an apocalyptic number.

It is an amenable number.

431204410421 is a deficient number, since it is larger than the sum of its proper divisors (26337601891).

431204410421 is an equidigital number, since it uses as much as digits as its factorization.

431204410421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76053 (or 76022 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 431204410421 its reverse (124014402134), we get a palindrome (555218812555).

The spelling of 431204410421 in words is "four hundred thirty-one billion, two hundred four million, four hundred ten thousand, four hundred twenty-one".

Divisors: 1 31 61 97 961 1891 3007 5917 58621 75833 93217 183427 2350823 4625813 5686237 7355801 72875513 143400203 228029831 448703861 4445406293 7068924761 13909819691 431204410421