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203968494 = 23237306259
BaseRepresentation
bin11000010100001…
…00111111101110
3112012210200011200
430022010333232
5404203442434
632123430330
75024463222
oct1412047756
9465720150
10203968494
11a5153604
12583853a6
1333346722
141d136782
1512d90199
hexc284fee

203968494 has 24 divisors (see below), whose sum is σ = 453877320. Its totient is φ = 66151728.

The previous prime is 203968493. The next prime is 203968517. The reversal of 203968494 is 494869302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203968493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152464 + ... + 153795.

It is an arithmetic number, because the mean of its divisors is an integer number (18911555).

Almost surely, 2203968494 is an apocalyptic number.

203968494 is an abundant number, since it is smaller than the sum of its proper divisors (249908826).

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

203968494 is a wasteful number, since it uses less digits than its factorization.

203968494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306304 (or 306301 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 203968494 is about 14281.7538838898. The cubic root of 203968494 is about 588.6462248294.

The spelling of 203968494 in words is "two hundred three million, nine hundred sixty-eight thousand, four hundred ninety-four".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 306259 612518 918777 1837554 2756331 5512662 11331583 22663166 33994749 67989498 101984247 203968494