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1490031 = 32165559
BaseRepresentation
bin101101011110001101111
32210200221100
411223301233
5340140111
651534143
715444054
oct5536157
92720840
101490031
11928534
125ba353
1340229a
142ab02b
151e6756
hex16bc6f

1490031 has 6 divisors (see below), whose sum is σ = 2152280. Its totient is φ = 993348.

The previous prime is 1490029. The next prime is 1490039. The reversal of 1490031 is 1300941.

It is not a de Polignac number, because 1490031 - 21 = 1490029 is a prime.

It is a super-2 number, since 2×14900312 = 4440384761922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1489986 and 1490013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82771 + ... + 82788.

21490031 is an apocalyptic number.

1490031 is a deficient number, since it is larger than the sum of its proper divisors (662249).

1490031 is a wasteful number, since it uses less digits than its factorization.

1490031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165565 (or 165562 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1490031 is about 1220.6682596021. The cubic root of 1490031 is about 114.2172680184.

Adding to 1490031 its reverse (1300941), we get a palindrome (2790972).

The spelling of 1490031 in words is "one million, four hundred ninety thousand, thirty-one".

Divisors: 1 3 9 165559 496677 1490031