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1490980 = 225127587
BaseRepresentation
bin101101100000000100100
32210202020111
411230000210
5340202410
651542404
715446611
oct5540044
92722214
101490980
11929217
125baa04
1340284a
142ab508
151e6b8a
hex16c024

1490980 has 24 divisors (see below), whose sum is σ = 3161088. Its totient is φ = 590688.

The previous prime is 1490969. The next prime is 1490999. The reversal of 1490980 is 890941.

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 7 ways as a sum of consecutive naturals, for example, 2247 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (131712).

21490980 is an apocalyptic number.

1490980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1490980 is an abundant number, since it is smaller than the sum of its proper divisors (1670108).

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

1490980 is a wasteful number, since it uses less digits than its factorization.

1490980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1490980 is about 1221.0569192302. The cubic root of 1490980 is about 114.2415111793.

The spelling of 1490980 in words is "one million, four hundred ninety thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 127 254 508 587 635 1174 1270 2348 2540 2935 5870 11740 74549 149098 298196 372745 745490 1490980