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431443130 = 25831274093
BaseRepresentation
bin11001101101110…
…100110010111010
31010001211120201012
4121231310302322
51340422140010
6110451153522
713456130456
oct3155646272
91101746635
10431443130
112015a1678
121005a58a2
136b5003c1
144142b666
1527d25005
hex19b74cba

431443130 has 32 divisors (see below), whose sum is σ = 792336384. Its totient is φ = 169114176.

The previous prime is 431443109. The next prime is 431443139. The reversal of 431443130 is 31344134.

It is a super-2 number, since 2×4314431302 = 372286348848393800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431443096 and 431443105.

It is not an unprimeable number, because it can be changed into a prime (431443139) 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, 103364 + ... + 107456.

It is an arithmetic number, because the mean of its divisors is an integer number (24760512).

Almost surely, 2431443130 is an apocalyptic number.

431443130 is a deficient number, since it is larger than the sum of its proper divisors (360893254).

431443130 is a wasteful number, since it uses less digits than its factorization.

431443130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 431443130 is about 20771.2091607590. The cubic root of 431443130 is about 755.6276697876.

Adding to 431443130 its reverse (31344134), we get a palindrome (462787264).

The spelling of 431443130 in words is "four hundred thirty-one million, four hundred forty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 83 127 166 254 415 635 830 1270 4093 8186 10541 20465 21082 40930 52705 105410 339719 519811 679438 1039622 1698595 2599055 3397190 5198110 43144313 86288626 215721565 431443130