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203213242401 = 31310151590059
BaseRepresentation
bin1011110101000001110…
…1000000000000100001
3201102112021120022102020
42331100131000000201
511312140042224101
6233204353012053
720452546026441
oct2752035000041
9642467508366
10203213242401
1179200639834
1233473854029
1316216c46340
149b9ab56121
1554455db136
hex2f50740021

203213242401 has 16 divisors (see below), whose sum is σ = 294682422720. Its totient is φ = 123816139200.

The previous prime is 203213242399. The next prime is 203213242411. The reversal of 203213242401 is 104242312302.

It is a happy number.

It is not a de Polignac number, because 203213242401 - 21 = 203213242399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203213242411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25791091 + ... + 25798968.

It is an arithmetic number, because the mean of its divisors is an integer number (18417651420).

Almost surely, 2203213242401 is an apocalyptic number.

It is an amenable number.

203213242401 is a deficient number, since it is larger than the sum of its proper divisors (91469180319).

203213242401 is a wasteful number, since it uses less digits than its factorization.

203213242401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51590176.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203213242401 its reverse (104242312302), we get a palindrome (307455554703).

The spelling of 203213242401 in words is "two hundred three billion, two hundred thirteen million, two hundred forty-two thousand, four hundred one".

Divisors: 1 3 13 39 101 303 1313 3939 51590059 154770177 670670767 2012012301 5210595959 15631787877 67737747467 203213242401