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431020203031 = 11264714803043
BaseRepresentation
bin1100100010110101100…
…11100101110000010111
31112012112112112221211101
412101122303211300113
524030212132444111
6530001414450531
743066040163505
oct6213263456027
91465475487741
10431020203031
11156881739030
126b64b963a47
1331850195272
1416c0bcd7675
15b329d94bc1
hex645ace5c17

431020203031 has 8 divisors (see below), whose sum is σ = 470381526144. Its totient is φ = 391688491320.

The previous prime is 431020202989. The next prime is 431020203043. The reversal of 431020203031 is 130302020134.

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

It is a cyclic number.

It is not a de Polignac number, because 431020203031 - 29 = 431020202519 is a prime.

It is a super-2 number, since 2×4310202030312 (a number of 24 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 (431020203431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7372405 + ... + 7430638.

It is an arithmetic number, because the mean of its divisors is an integer number (58797690768).

Almost surely, 2431020203031 is an apocalyptic number.

431020203031 is a deficient number, since it is larger than the sum of its proper divisors (39361323113).

431020203031 is a wasteful number, since it uses less digits than its factorization.

431020203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14805701.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 431020203031 its reverse (130302020134), we get a palindrome (561322223165).

The spelling of 431020203031 in words is "four hundred thirty-one billion, twenty million, two hundred three thousand, thirty-one".

Divisors: 1 11 2647 29117 14803043 162833473 39183654821 431020203031