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203244740 = 22525140487
BaseRepresentation
bin11000001110101…
…00010011000100
3112011102220100222
430013110103010
5404012312430
632100123512
75015360156
oct1407242304
9464386328
10203244740
11a47a9866
1258096598
133315217a
141cdc8ad6
1512c9a9e5
hexc1d44c4

203244740 has 24 divisors (see below), whose sum is σ = 428524992. Its totient is φ = 80972000.

The previous prime is 203244739. The next prime is 203244751. The reversal of 203244740 is 47442302.

It is an unprimeable number.

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, 15224 + ... + 25263.

It is an arithmetic number, because the mean of its divisors is an integer number (17855208).

Almost surely, 2203244740 is an apocalyptic number.

203244740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203244740 is an abundant number, since it is smaller than the sum of its proper divisors (225280252).

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

203244740 is a wasteful number, since it uses less digits than its factorization.

203244740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40747 (or 40745 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 203244740 is about 14256.3929519356. The cubic root of 203244740 is about 587.9491564472.

The spelling of 203244740 in words is "two hundred three million, two hundred forty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 251 502 1004 1255 2510 5020 40487 80974 161948 202435 404870 809740 10162237 20324474 40648948 50811185 101622370 203244740