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431210410421 = 71917291187507
BaseRepresentation
bin1100100011001100010…
…01001011000110110101
31112020000210110111022112
412101212021023012311
524031104331113141
6530032331340405
743103540004140
oct6214611130665
91466023414275
10431210410421
1115696a04271a
126b6a35b1705
133188070120b
1416c2928b057
15b33b9177eb
hex646624b1b5

431210410421 has 16 divisors (see below), whose sum is σ = 518782133760. Its totient is φ = 350133703920.

The previous prime is 431210410361. The next prime is 431210410427. The reversal of 431210410421 is 124014012134.

It is not a de Polignac number, because 431210410421 - 210 = 431210409397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431210410427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2205950 + ... + 2393456.

It is an arithmetic number, because the mean of its divisors is an integer number (32423883360).

Almost surely, 2431210410421 is an apocalyptic number.

It is an amenable number.

431210410421 is a deficient number, since it is larger than the sum of its proper divisors (87571723339).

431210410421 is a wasteful number, since it uses less digits than its factorization.

431210410421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204824.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 431210410421 its reverse (124014012134), we get a palindrome (555224422555).

The spelling of 431210410421 in words is "four hundred thirty-one billion, two hundred ten million, four hundred ten thousand, four hundred twenty-one".

Divisors: 1 7 19 133 17291 121037 187507 328529 1312549 2299703 3562633 24938431 3242183537 22695284759 61601487203 431210410421