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201038389 = 283710383
BaseRepresentation
bin10111111101110…
…01101000110101
3112000021210211021
423332321220311
5402431212024
631540541141
74660540516
oct1376715065
9460253737
10201038389
11a3532132
12573b17b1
133285bb36
141c9b2a0d
15129b1de4
hexbfb9a35

201038389 has 4 divisors (see below), whose sum is σ = 201749056. Its totient is φ = 200327724.

The previous prime is 201038351. The next prime is 201038419. The reversal of 201038389 is 983830102.

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 a de Polignac number, because none of the positive numbers 2k-201038389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201038339) 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, 354909 + ... + 355474.

It is an arithmetic number, because the mean of its divisors is an integer number (50437264).

Almost surely, 2201038389 is an apocalyptic number.

It is an amenable number.

201038389 is a deficient number, since it is larger than the sum of its proper divisors (710667).

201038389 is an equidigital number, since it uses as much as digits as its factorization.

201038389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710666.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 201038389 is about 14178.8006897622. The cubic root of 201038389 is about 585.8138903918.

The spelling of 201038389 in words is "two hundred one million, thirty-eight thousand, three hundred eighty-nine".

Divisors: 1 283 710383 201038389