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8490460 = 2251138593
BaseRepresentation
bin100000011000…
…110111011100
3120222100201111
4200120313130
54133143320
6501551404
7132111346
oct40306734
916870644
108490460
11487a010
122a15564
1319b3754
1411b0296
15b2aa5a
hex818ddc

8490460 has 24 divisors (see below), whose sum is σ = 19451376. Its totient is φ = 3087360.

The previous prime is 8490457. The next prime is 8490487. The reversal of 8490460 is 640948.

It is a super-2 number, since 2×84904602 = 144175822023200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19077 + ... + 19516.

It is an arithmetic number, because the mean of its divisors is an integer number (810474).

Almost surely, 28490460 is an apocalyptic number.

It is an amenable number.

8490460 is an abundant number, since it is smaller than the sum of its proper divisors (10960916).

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

8490460 is a wasteful number, since it uses less digits than its factorization.

8490460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38613 (or 38611 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 8490460 is about 2913.8393915932. The cubic root of 8490460 is about 204.0063755537.

The spelling of 8490460 in words is "eight million, four hundred ninety thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 38593 77186 154372 192965 385930 424523 771860 849046 1698092 2122615 4245230 8490460