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431312441 = 73715710607
BaseRepresentation
bin11001101101010…
…100111000111001
31010001120221102212
4121231110320321
51340403444231
6110444304505
713455044450
oct3155247071
91101527385
10431312441
1120151246a
12100542135
136b485a81
14413d5b97
1527ceb42b
hex19b54e39

431312441 has 16 divisors (see below), whose sum is σ = 509523456. Its totient is φ = 357379776.

The previous prime is 431312417. The next prime is 431312443. The reversal of 431312441 is 144213134.

It is a cyclic number.

It is not a de Polignac number, because 431312441 - 222 = 427118137 is a prime.

It is a super-2 number, since 2×4313124412 = 372060843522756962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431312443) 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, 35360 + ... + 45966.

It is an arithmetic number, because the mean of its divisors is an integer number (31845216).

Almost surely, 2431312441 is an apocalyptic number.

It is an amenable number.

431312441 is a deficient number, since it is larger than the sum of its proper divisors (78211015).

431312441 is a wasteful number, since it uses less digits than its factorization.

431312441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10808.

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

The square root of 431312441 is about 20768.0630054899. The cubic root of 431312441 is about 755.5513660291.

Adding to 431312441 its reverse (144213134), we get a palindrome (575525575).

The spelling of 431312441 in words is "four hundred thirty-one million, three hundred twelve thousand, four hundred forty-one".

Divisors: 1 7 37 157 259 1099 5809 10607 40663 74249 392459 1665299 2747213 11657093 61616063 431312441