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20310202201 = 57135569531
BaseRepresentation
bin10010111010100101…
…010001011101011001
31221102110020011200011
4102322211101131121
5313043402432301
613155210041521
71316206604332
oct227245213531
957373204604
1020310202201
118682641583
123b29a192a1
131bb8a38333
14da9593289
157dd0e2a51
hex4ba951759

20310202201 has 4 divisors (see below), whose sum is σ = 20345772304. Its totient is φ = 20274632100.

The previous prime is 20310202183. The next prime is 20310202207. The reversal of 20310202201 is 10220201302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20310202201 - 29 = 20310201689 is a prime.

It is a super-4 number, since 4×203102022014 (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310202207) 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, 17784195 + ... + 17785336.

It is an arithmetic number, because the mean of its divisors is an integer number (5086443076).

Almost surely, 220310202201 is an apocalyptic number.

It is an amenable number.

20310202201 is a deficient number, since it is larger than the sum of its proper divisors (35570103).

20310202201 is an equidigital number, since it uses as much as digits as its factorization.

20310202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35570102.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20310202201 its reverse (10220201302), we get a palindrome (30530403503).

The spelling of 20310202201 in words is "twenty billion, three hundred ten million, two hundred two thousand, two hundred one".

Divisors: 1 571 35569531 20310202201