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1353989 = 71314879
BaseRepresentation
bin101001010100100000101
32112210022202
411022210011
5321311424
645004245
714336330
oct5124405
92483282
101353989
118452aa
12553685
133853a0
14273617
151bb2ae
hex14a905

1353989 has 8 divisors (see below), whose sum is σ = 1666560. Its totient is φ = 1071216.

The previous prime is 1353983. The next prime is 1354007. The reversal of 1353989 is 9893531.

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

It is a cyclic number.

It is not a de Polignac number, because 1353989 - 24 = 1353973 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7349 + ... + 7530.

It is an arithmetic number, because the mean of its divisors is an integer number (208320).

21353989 is an apocalyptic number.

It is an amenable number.

1353989 is a deficient number, since it is larger than the sum of its proper divisors (312571).

1353989 is a wasteful number, since it uses less digits than its factorization.

1353989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14899.

The product of its digits is 29160, while the sum is 38.

The square root of 1353989 is about 1163.6103299645. The cubic root of 1353989 is about 110.6296942266.

The spelling of 1353989 in words is "one million, three hundred fifty-three thousand, nine hundred eighty-nine".

Divisors: 1 7 13 91 14879 104153 193427 1353989