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1490452198 = 21547348163
BaseRepresentation
bin101100011010110…
…0111111011100110
310211212112211001021
41120311213323212
511023023432243
6403521321354
751635430454
oct13065477346
93755484037
101490452198
116a5359884
1235719625a
131a9a2b4a1
14101d399d4
158acb06ed
hex58d67ee6

1490452198 has 8 divisors (see below), whose sum is σ = 2235869208. Its totient is φ = 745162464.

The previous prime is 1490452163. The next prime is 1490452211. The reversal of 1490452198 is 8912540941.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6865 + ... + 55027.

It is an arithmetic number, because the mean of its divisors is an integer number (279483651).

Almost surely, 21490452198 is an apocalyptic number.

1490452198 is a deficient number, since it is larger than the sum of its proper divisors (745417010).

1490452198 is a wasteful number, since it uses less digits than its factorization.

1490452198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63638.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 1490452198 is about 38606.3750953130. The cubic root of 1490452198 is about 1142.2802921562.

The spelling of 1490452198 in words is "one billion, four hundred ninety million, four hundred fifty-two thousand, one hundred ninety-eight".

Divisors: 1 2 15473 30946 48163 96326 745226099 1490452198