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201024311 = 474277113
BaseRepresentation
bin10111111101101…
…10001100110111
3112000021002111212
423332312030313
5402430234221
631540352035
74660451465
oct1376661467
9460232455
10201024311
11a35225a4
12573a561b
13328555c7
141c9ab835
15129acb5b
hexbfb6337

201024311 has 4 divisors (see below), whose sum is σ = 205301472. Its totient is φ = 196747152.

The previous prime is 201024251. The next prime is 201024319. The reversal of 201024311 is 113420102.

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

It is a cyclic number.

It is not a de Polignac number, because 201024311 - 214 = 201007927 is a prime.

It is a super-2 number, since 2×2010243112 = 80821547226049442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201024319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138510 + ... + 2138603.

It is an arithmetic number, because the mean of its divisors is an integer number (51325368).

Almost surely, 2201024311 is an apocalyptic number.

201024311 is a deficient number, since it is larger than the sum of its proper divisors (4277161).

201024311 is an equidigital number, since it uses as much as digits as its factorization.

201024311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277160.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 201024311 is about 14178.3042356976. The cubic root of 201024311 is about 585.8002159215.

Adding to 201024311 its reverse (113420102), we get a palindrome (314444413).

The spelling of 201024311 in words is "two hundred one million, twenty-four thousand, three hundred eleven".

Divisors: 1 47 4277113 201024311