Cookie Consent by FreePrivacyPolicy.com
Search a number
-
+
271887121 = 11214992
BaseRepresentation
bin10000001101001…
…010101100010001
3200221121022000101
4100031022230101
51024100341441
642551252401
76511000552
oct2015125421
9627538011
10271887121
1112a522900
127707a101
1344436a6c
1428176329
1518d09231
hex1034ab11

271887121 has 9 divisors (see below), whose sum is σ = 299050633. Its totient is φ = 247005220.

The previous prime is 271887101. The next prime is 271887149. The reversal of 271887121 is 121788172.

The square root of 271887121 is 16489.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 271887121 - 25 = 271887089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (271887101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 180630 + ... + 182128.

Almost surely, 2271887121 is an apocalyptic number.

271887121 is the 16489-th square number.

271887121 is the 8245-th centered octagonal number.

It is an amenable number.

271887121 is a deficient number, since it is larger than the sum of its proper divisors (27163512).

271887121 is an frugal number, since it uses more digits than its factorization.

271887121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020 (or 1510 counting only the distinct ones).

The product of its digits is 12544, while the sum is 37.

The cubic root of 271887121 is about 647.8327193883.

Multiplying 271887121 by its product of digits (12544), we get a square (3410552045824 = 18467682).

The spelling of 271887121 in words is "two hundred seventy-one million, eight hundred eighty-seven thousand, one hundred twenty-one".

Divisors: 1 11 121 1499 16489 181379 2247001 24717011 271887121