Search a number
-
+
2231115250 = 253713101971
BaseRepresentation
bin1000010011111100…
…0001110111110010
312202111020101202011
42010333001313302
514032131142000
61005220313134
7106201111120
oct20477016762
95674211664
102231115250
11a45451a01
125232427aa
13297307150
1417245a910
15d0d162ba
hex84fc1df2

2231115250 has 128 divisors (see below), whose sum is σ = 5196731904. Its totient is φ = 698400000.

The previous prime is 2231115233. The next prime is 2231115251. The reversal of 2231115250 is 525111322.

It is a super-3 number, since 3×22311152503 (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231115251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2297265 + ... + 2298235.

It is an arithmetic number, because the mean of its divisors is an integer number (40599468).

Almost surely, 22231115250 is an apocalyptic number.

2231115250 is an abundant number, since it is smaller than the sum of its proper divisors (2965616654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231115250 is a wasteful number, since it uses less digits than its factorization.

2231115250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2231115250 is about 47234.6827024380. The cubic root of 2231115250 is about 1306.6943147899.

Adding to 2231115250 its reverse (525111322), we get a palindrome (2756226572).

The spelling of 2231115250 in words is "two billion, two hundred thirty-one million, one hundred fifteen thousand, two hundred fifty".

Divisors: 1 2 5 7 10 13 14 25 26 35 50 65 70 91 101 125 130 175 182 202 250 325 350 455 505 650 707 875 910 971 1010 1313 1414 1625 1750 1942 2275 2525 2626 3250 3535 4550 4855 5050 6565 6797 7070 9191 9710 11375 12623 12625 13130 13594 17675 18382 22750 24275 25246 25250 32825 33985 35350 45955 48550 63115 65650 67970 88361 88375 91910 98071 121375 126230 164125 169925 176722 176750 196142 229775 242750 315575 328250 339850 441805 459550 490355 631150 686497 849625 883610 980710 1148875 1274923 1372994 1577875 1699250 2209025 2297750 2451775 2549846 3155750 3432485 4418050 4903550 6374615 6864970 8924461 11045125 12258875 12749230 17162425 17848922 22090250 24517750 31873075 34324850 44622305 63746150 85812125 89244610 159365375 171624250 223111525 318730750 446223050 1115557625 2231115250