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431441142 = 231152112547
BaseRepresentation
bin11001101101110…
…100010011110110
31010001211110222120
4121231310103312
51340422104032
6110451140410
713456121616
oct3155642366
91101743876
10431441142
112015a0130
121005a4706
136b4cc522
144142aa46
1527d2462c
hex19b744f6

431441142 has 32 divisors (see below), whose sum is σ = 943208064. Its totient is φ = 130478400.

The previous prime is 431441137. The next prime is 431441161. The reversal of 431441142 is 241144134.

It is a super-2 number, since 2×4314411422 = 372282918020528328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 28113 + ... + 40659.

It is an arithmetic number, because the mean of its divisors is an integer number (29475252).

Almost surely, 2431441142 is an apocalyptic number.

431441142 is an abundant number, since it is smaller than the sum of its proper divisors (511766922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431441142 is a wasteful number, since it uses less digits than its factorization.

431441142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13084.

The product of its digits is 1536, while the sum is 24.

The square root of 431441142 is about 20771.1613060031. The cubic root of 431441142 is about 755.6265091943.

Adding to 431441142 its reverse (241144134), we get a palindrome (672585276).

It can be divided in two parts, 4314411 and 42, that added together give a triangular number (4314453 = T2937).

The spelling of 431441142 in words is "four hundred thirty-one million, four hundred forty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 521 1042 1563 3126 5731 11462 12547 17193 25094 34386 37641 75282 138017 276034 414051 828102 6536987 13073974 19610961 39221922 71906857 143813714 215720571 431441142