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2203001031001 = 672221532
BaseRepresentation
bin100000000011101101000…
…110000000100101011001
321210121022221002201001211
4200003231012000211121
5242043221230443001
64404013353343121
7315106263540421
oct40035506004531
97717287081054
102203001031001
1177a318716aa1
122b6b58707aa1
1312c985539124
14788a9365481
153c489b4b351
hex200ed180959

2203001031001 has 9 divisors (see below), whose sum is σ = 2236473354591. Its totient is φ = 2170022458032.

The previous prime is 2203001030987. The next prime is 2203001031013. The reversal of 2203001031001 is 1001301003022.

The square root of 2203001031001 is 1484251.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 122552505625 + 2080448525376 = 350075^2 + 1442376^2 .

It is a de Polignac number, because none of the positive numbers 2k-2203001031001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2203001031071) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 99433741 + ... + 99455893.

It is an arithmetic number, because the mean of its divisors is an integer number (248497039399).

Almost surely, 22203001031001 is an apocalyptic number.

2203001031001 is the 1484251-st square number.

2203001031001 is the 742126-th centered octagonal number.

It is an amenable number.

2203001031001 is a deficient number, since it is larger than the sum of its proper divisors (33472323590).

2203001031001 is an frugal number, since it uses more digits than its factorization.

2203001031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44440 (or 22220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Multiplying 2203001031001 by its product of nonzero digits (36), we get a square (79308037116036 = 89055062).

Adding to 2203001031001 its reverse (1001301003022), we get a palindrome (3204302034023).

The spelling of 2203001031001 in words is "two trillion, two hundred three billion, one million, thirty-one thousand, one".

Divisors: 1 67 4489 22153 1484251 99444817 490755409 32880612403 2203001031001