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315421435331 = 438388378099
BaseRepresentation
bin1001001011100001001…
…01010010010111000011
31010011011021002010000122
410211300211102113003
520131440341412311
6400522544010455
731534302651242
oct4456045222703
91104137063018
10315421435331
111118511a4982
125116a000a2b
1323989a82a82
14113a330a959
1583114bd0db
hex49709525c3

315421435331 has 8 divisors (see below), whose sum is σ = 326645457600. Its totient is φ = 304374169512.

The previous prime is 315421435253. The next prime is 315421435393. The reversal of 315421435331 is 133534124513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-315421435331 is a prime.

It is a super-2 number, since 2×3154214353312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315421435291 and 315421435300.

It is not an unprimeable number, because it can be changed into a prime (315421432331) 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 7 ways as a sum of consecutive naturals, for example, 44185481 + ... + 44192618.

It is an arithmetic number, because the mean of its divisors is an integer number (40830682200).

Almost surely, 2315421435331 is an apocalyptic number.

315421435331 is a deficient number, since it is larger than the sum of its proper divisors (11224022269).

315421435331 is an equidigital number, since it uses as much as digits as its factorization.

315421435331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88378225.

The product of its digits is 64800, while the sum is 35.

Adding to 315421435331 its reverse (133534124513), we get a palindrome (448955559844).

The spelling of 315421435331 in words is "three hundred fifteen billion, four hundred twenty-one million, four hundred thirty-five thousand, three hundred thirty-one".

Divisors: 1 43 83 3569 88378099 3800258257 7335382217 315421435331