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2001030201 = 321911701931
BaseRepresentation
bin111011101000101…
…0100110000111001
312011110021212101200
41313101110300321
513044230431301
6530321004413
7100405322202
oct16721246071
95143255350
102001030201
11937590675
1247a183709
1325b748251
1414da865a9
15baa17c86
hex77454c39

2001030201 has 12 divisors (see below), whose sum is σ = 3042502320. Its totient is φ = 1263808440.

The previous prime is 2001030193. The next prime is 2001030223. The reversal of 2001030201 is 1020301002.

It is a happy number.

It is not a de Polignac number, because 2001030201 - 23 = 2001030193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2001030001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5850795 + ... + 5851136.

It is an arithmetic number, because the mean of its divisors is an integer number (253541860).

Almost surely, 22001030201 is an apocalyptic number.

It is an amenable number.

2001030201 is a deficient number, since it is larger than the sum of its proper divisors (1041472119).

2001030201 is a wasteful number, since it uses less digits than its factorization.

2001030201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11701956 (or 11701953 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2001030201 is about 44732.8760644786. The cubic root of 2001030201 is about 1260.1373414161.

Adding to 2001030201 its reverse (1020301002), we get a palindrome (3021331203).

The spelling of 2001030201 in words is "two billion, one million, thirty thousand, two hundred one".

Divisors: 1 3 9 19 57 171 11701931 35105793 105317379 222336689 667010067 2001030201