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1490 = 25149
BaseRepresentation
bin10111010010
32001012
4113102
521430
610522
74226
oct2722
92035
101490
111135
12a42
138a8
14786
15695
hex5d2

1490 has 8 divisors (see below), whose sum is σ = 2700. Its totient is φ = 592.

The previous prime is 1489. The next prime is 1493. The reversal of 1490 is 941.

1490 is nontrivially palindromic in base 13.

1490 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1369 + 121 = 37^2 + 11^2 .

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

It is a tetranacci number.

It is an alternating number because its digits alternate between odd and even.

1490 is an undulating number in base 13.

1490 is strictly pandigital in base 5.

It is a plaindrome in base 11.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65 + ... + 84.

21490 is an apocalyptic number.

1490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1490 is a deficient number, since it is larger than the sum of its proper divisors (1210).

1490 is a wasteful number, since it uses less digits than its factorization.

1490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1490 is about 38.6005181312. The cubic root of 1490 is about 11.4216475919.

The spelling of 1490 in words is "one thousand, four hundred ninety".

Divisors: 1 2 5 10 149 298 745 1490