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203496493 = 3125126153
BaseRepresentation
bin11000010000100…
…01110000101101
3112011220200201011
430020101300231
5404043341433
632105345221
75020456144
oct1410216055
9464820634
10203496493
11a4960a22
1258198211
133320c935
141d05275b
1512cea3cd
hexc211c2d

203496493 has 8 divisors (see below), whose sum is σ = 210905856. Its totient is φ = 196140000.

The previous prime is 203496481. The next prime is 203496497. The reversal of 203496493 is 394694302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-203496493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203496497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5296 + ... + 20857.

It is an arithmetic number, because the mean of its divisors is an integer number (26363232).

Almost surely, 2203496493 is an apocalyptic number.

It is an amenable number.

203496493 is a deficient number, since it is larger than the sum of its proper divisors (7409363).

203496493 is a wasteful number, since it uses less digits than its factorization.

203496493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26435.

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 203496493 is about 14265.2196968711. The cubic root of 203496493 is about 588.1918144547.

The spelling of 203496493 in words is "two hundred three million, four hundred ninety-six thousand, four hundred ninety-three".

Divisors: 1 31 251 7781 26153 810743 6564403 203496493