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8490506 = 217772389
BaseRepresentation
bin100000011000…
…111000001010
3120222100210012
4200120320022
54133144011
6501551522
7132111443
oct40307012
916870705
108490506
11487a052
122a155a2
1319b378b
1411b02ca
15b2aa8b
hex818e0a

8490506 has 8 divisors (see below), whose sum is σ = 12748260. Its totient is φ = 4241088.

The previous prime is 8490499. The next prime is 8490539. The reversal of 8490506 is 6050948.

It can be written as a sum of positive squares in 2 ways, for example, as 8323225 + 167281 = 2885^2 + 409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2360 + ... + 4748.

Almost surely, 28490506 is an apocalyptic number.

8490506 is a deficient number, since it is larger than the sum of its proper divisors (4257754).

8490506 is a wasteful number, since it uses less digits than its factorization.

8490506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 8490506 is about 2913.8472849482. The cubic root of 8490506 is about 204.0067439780.

The spelling of 8490506 in words is "eight million, four hundred ninety thousand, five hundred six".

Divisors: 1 2 1777 2389 3554 4778 4245253 8490506