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431040834 = 23273420959
BaseRepresentation
bin11001101100010…
…010100101000010
31010001002010212100
4121230102211002
51340321301314
6110434411230
713452533550
oct3154224502
91101063770
10431040834
112013473a4
12100430b16
136b3bc263
1441364bd0
1527c95c09
hex19b12942

431040834 has 24 divisors (see below), whose sum is σ = 1067339520. Its totient is φ = 123154488.

The previous prime is 431040811. The next prime is 431040847. The reversal of 431040834 is 438040134.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431040798 and 431040807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1710354 + ... + 1710605.

It is an arithmetic number, because the mean of its divisors is an integer number (44472480).

Almost surely, 2431040834 is an apocalyptic number.

431040834 is an abundant number, since it is smaller than the sum of its proper divisors (636298686).

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

431040834 is a wasteful number, since it uses less digits than its factorization.

431040834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420974 (or 3420971 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 431040834 is about 20761.5229210191. The cubic root of 431040834 is about 755.3927369154.

Adding to 431040834 its reverse (438040134), we get a palindrome (869080968).

The spelling of 431040834 in words is "four hundred thirty-one million, forty thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 3420959 6841918 10262877 20525754 23946713 30788631 47893426 61577262 71840139 143680278 215520417 431040834