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8438058 = 232468781
BaseRepresentation
bin100000001100…
…000100101010
3120212200211200
4200030010222
54130004213
6500505030
7131502516
oct40140452
916780750
108438058
114843702
1229ab176
131995945
141199146
15b1a273
hex80c12a

8438058 has 12 divisors (see below), whose sum is σ = 18282498. Its totient is φ = 2812680.

The previous prime is 8438041. The next prime is 8438083. The reversal of 8438058 is 8508348.

It can be written as a sum of positive squares in only one way, i.e., 5919489 + 2518569 = 2433^2 + 1587^2 .

It is a super-3 number, since 3×84380583 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 234373 + ... + 234408.

Almost surely, 28438058 is an apocalyptic number.

8438058 is an abundant number, since it is smaller than the sum of its proper divisors (9844440).

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

8438058 is a wasteful number, since it uses less digits than its factorization.

8438058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468789 (or 468786 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8438058 is about 2904.8335580546. The cubic root of 8438058 is about 203.5858089828.

The spelling of 8438058 in words is "eight million, four hundred thirty-eight thousand, fifty-eight".

Divisors: 1 2 3 6 9 18 468781 937562 1406343 2812686 4219029 8438058