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200141521 = 915121871
BaseRepresentation
bin10111110110111…
…10101011010001
3111221121020112221
423323132223101
5402214012041
631505421041
74650113656
oct1373365321
9457536487
10200141521
11a2a7a318
125703a781
1332606848
141c81bc2d
15128862d1
hexbedead1

200141521 has 4 divisors (see below), whose sum is σ = 200172544. Its totient is φ = 200110500.

The previous prime is 200141503. The next prime is 200141537. The reversal of 200141521 is 125141002.

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 200141521 - 25 = 200141489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200141495 and 200141504.

It is not an unprimeable number, because it can be changed into a prime (200141551) 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, 1785 + ... + 20086.

It is an arithmetic number, because the mean of its divisors is an integer number (50043136).

Almost surely, 2200141521 is an apocalyptic number.

It is an amenable number.

200141521 is a deficient number, since it is larger than the sum of its proper divisors (31023).

200141521 is an equidigital number, since it uses as much as digits as its factorization.

200141521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31022.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 200141521 is about 14147.1382618535. The cubic root of 200141521 is about 584.9414517586.

Adding to 200141521 its reverse (125141002), we get a palindrome (325282523).

The spelling of 200141521 in words is "two hundred million, one hundred forty-one thousand, five hundred twenty-one".

Divisors: 1 9151 21871 200141521