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203101143001 = 451345003577
BaseRepresentation
bin1011110100100111000…
…1010111111111011001
3201102020110122001221121
42331021301113333121
511311422343034001
6233145310205241
720450015142151
oct2751161277731
9642213561847
10203101143001
11791533338a9
12334421b3821
13161c9957533
149b89cd5761
15543a8466a1
hex2f49c57fd9

203101143001 has 4 divisors (see below), whose sum is σ = 203146151092. Its totient is φ = 203056134912.

The previous prime is 203101142989. The next prime is 203101143061. The reversal of 203101143001 is 100341101302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11628387225 + 191472755776 = 107835^2 + 437576^2 .

It is a cyclic number.

It is not a de Polignac number, because 203101143001 - 27 = 203101142873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203101143061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22497276 + ... + 22506301.

It is an arithmetic number, because the mean of its divisors is an integer number (50786537773).

Almost surely, 2203101143001 is an apocalyptic number.

It is an amenable number.

203101143001 is a deficient number, since it is larger than the sum of its proper divisors (45008091).

203101143001 is an equidigital number, since it uses as much as digits as its factorization.

203101143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45008090.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203101143001 its reverse (100341101302), we get a palindrome (303442244303).

The spelling of 203101143001 in words is "two hundred three billion, one hundred one million, one hundred forty-three thousand, one".

Divisors: 1 4513 45003577 203101143001