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8481906 = 232471217
BaseRepresentation
bin100000010110…
…110001110010
3120221220222200
4200112301302
54132410111
6501444030
7132044406
oct40266162
916856880
108481906
114873644
122a10616
1319ac8a4
1411ab106
15b28256
hex816c72

8481906 has 12 divisors (see below), whose sum is σ = 18377502. Its totient is φ = 2827296.

The previous prime is 8481901. The next prime is 8481911. The reversal of 8481906 is 6091848.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8481901) and next prime (8481911).

It can be written as a sum of positive squares in only one way, i.e., 8173881 + 308025 = 2859^2 + 555^2 .

It is not an unprimeable number, because it can be changed into a prime (8481901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235591 + ... + 235626.

Almost surely, 28481906 is an apocalyptic number.

8481906 is an abundant number, since it is smaller than the sum of its proper divisors (9895596).

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

8481906 is a wasteful number, since it uses less digits than its factorization.

8481906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471225 (or 471222 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8481906 is about 2912.3711988687. The cubic root of 8481906 is about 203.9378415006.

The spelling of 8481906 in words is "eight million, four hundred eighty-one thousand, nine hundred six".

Divisors: 1 2 3 6 9 18 471217 942434 1413651 2827302 4240953 8481906