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431431241 = 7343313649
BaseRepresentation
bin11001101101110…
…001111001001001
31010001210222101212
4121231301321021
51340421244431
6110451022505
713456051013
oct3155617111
91101728355
10431431241
1120159374a
1210059aa35
136b4c7b77
14414271b3
1527d2172b
hex19b71e49

431431241 has 8 divisors (see below), whose sum is σ = 438383400. Its totient is φ = 424507392.

The previous prime is 431431237. The next prime is 431431267. The reversal of 431431241 is 142134134.

It can be written as a sum of positive squares in 4 ways, for example, as 246016 + 431185225 = 496^2 + 20765^2 .

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 431431241 - 22 = 431431237 is a prime.

It is a super-2 number, since 2×4314312412 = 372265831421600162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431437241) 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, 24785 + ... + 38433.

It is an arithmetic number, because the mean of its divisors is an integer number (54797925).

Almost surely, 2431431241 is an apocalyptic number.

It is an amenable number.

431431241 is a deficient number, since it is larger than the sum of its proper divisors (6952159).

431431241 is a wasteful number, since it uses less digits than its factorization.

431431241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14155.

The product of its digits is 1152, while the sum is 23.

The square root of 431431241 is about 20770.9229693820. The cubic root of 431431241 is about 755.6207289425.

Adding to 431431241 its reverse (142134134), we get a palindrome (573565375).

The spelling of 431431241 in words is "four hundred thirty-one million, four hundred thirty-one thousand, two hundred forty-one".

Divisors: 1 73 433 13649 31609 996377 5910017 431431241