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8434031 = 23366697
BaseRepresentation
bin100000001011…
…000101101111
3120212111022112
4200023011233
54124342111
6500434235
7131455004
oct40130557
916774275
108434031
114840681
1229a897b
131993b68
1411978ab
15b18e8b
hex80b16f

8434031 has 4 divisors (see below), whose sum is σ = 8800752. Its totient is φ = 8067312.

The previous prime is 8434021. The next prime is 8434037. The reversal of 8434031 is 1304348.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8434031 - 222 = 4239727 is a prime.

It is a super-2 number, since 2×84340312 = 142265757817922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 366697 = 8434031 / (8 + 4 + 3 + 4 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8433988 and 8434006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8434037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183326 + ... + 183371.

It is an arithmetic number, because the mean of its divisors is an integer number (2200188).

Almost surely, 28434031 is an apocalyptic number.

8434031 is a deficient number, since it is larger than the sum of its proper divisors (366721).

8434031 is a wasteful number, since it uses less digits than its factorization.

8434031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366720.

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

The square root of 8434031 is about 2904.1403203013. The cubic root of 8434031 is about 203.5534172284.

Adding to 8434031 its reverse (1304348), we get a palindrome (9738379).

The spelling of 8434031 in words is "eight million, four hundred thirty-four thousand, thirty-one".

Divisors: 1 23 366697 8434031