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203002401 = 379666781
BaseRepresentation
bin11000001100110…
…01001000100001
3112010222120221110
430012121020201
5403432034101
632051013533
75013330510
oct1406311041
9463876843
10203002401
11a4653788
1257b9a2a9
1333098a84
141cd64677
1512c4dcd6
hexc199221

203002401 has 8 divisors (see below), whose sum is σ = 309337024. Its totient is φ = 116001360.

The previous prime is 203002399. The next prime is 203002427. The reversal of 203002401 is 104200302.

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

It is not a de Polignac number, because 203002401 - 21 = 203002399 is a prime.

It is a super-3 number, since 3×2030024013 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203002201) 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, 4833370 + ... + 4833411.

It is an arithmetic number, because the mean of its divisors is an integer number (38667128).

Almost surely, 2203002401 is an apocalyptic number.

203002401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

203002401 is a deficient number, since it is larger than the sum of its proper divisors (106334623).

203002401 is an equidigital number, since it uses as much as digits as its factorization.

203002401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666791.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 203002401 is about 14247.8911071077. The cubic root of 203002401 is about 587.7153829876.

Adding to 203002401 its reverse (104200302), we get a palindrome (307202703).

The spelling of 203002401 in words is "two hundred three million, two thousand, four hundred one".

Divisors: 1 3 7 21 9666781 29000343 67667467 203002401