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20203220201 = 1922927716763
BaseRepresentation
bin10010110100001101…
…001010110011101001
31221010222220220221212
4102310031022303221
5312334011021301
613140425042505
71313440352423
oct226415126351
957128826855
1020203220201
1186282113aa
123aba026435
131b9c81b888
14d992a5813
157d3a0e4bb
hex4b434ace9

20203220201 has 16 divisors (see below), whose sum is σ = 21437803200. Its totient is φ = 18986384448.

The previous prime is 20203220179. The next prime is 20203220269. The reversal of 20203220201 is 10202230202.

It is a de Polignac number, because none of the positive numbers 2k-20203220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20203220281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196846 + ... + 1213608.

It is an arithmetic number, because the mean of its divisors is an integer number (1339862700).

Almost surely, 220203220201 is an apocalyptic number.

It is an amenable number.

20203220201 is a deficient number, since it is larger than the sum of its proper divisors (1234582999).

20203220201 is a wasteful number, since it uses less digits than its factorization.

20203220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17288.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20203220201 its reverse (10202230202), we get a palindrome (30405450403).

The spelling of 20203220201 in words is "twenty billion, two hundred three million, two hundred twenty thousand, two hundred one".

Divisors: 1 19 229 277 4351 5263 16763 63433 318497 1205227 3838727 4643351 72935813 88223669 1063327379 20203220201