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8242434 = 232457913
BaseRepresentation
bin11111011100010100000010
3120111202111100
4133130110002
54102224214
6452355230
7130026264
oct37342402
916452440
108242434
11471a732
122915b16
1319278a5
141147b34
15acc309
hex7dc502

8242434 has 12 divisors (see below), whose sum is σ = 17858646. Its totient is φ = 2747472.

The previous prime is 8242411. The next prime is 8242439. The reversal of 8242434 is 4342428.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8037225 + 205209 = 2835^2 + 453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8242398 and 8242407.

It is not an unprimeable number, because it can be changed into a prime (8242439) 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 5 ways as a sum of consecutive naturals, for example, 228939 + ... + 228974.

Almost surely, 28242434 is an apocalyptic number.

8242434 is an abundant number, since it is smaller than the sum of its proper divisors (9616212).

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

8242434 is a wasteful number, since it uses less digits than its factorization.

8242434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457921 (or 457918 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 8242434 is about 2870.9639496169. The cubic root of 8242434 is about 202.0002123973. Note that the first 3 decimals are identical.

The spelling of 8242434 in words is "eight million, two hundred forty-two thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 18 457913 915826 1373739 2747478 4121217 8242434