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2183225625 = 325472892
BaseRepresentation
bin1000001000100001…
…0110000100011001
312122011010100112100
42002020112010121
513432401210000
61000350034013
7105050053200
oct20210260431
95564110470
102183225625
11a204127a9
1250b1a8909
1328a40a4a9
14169d52237
15cba06a00
hex82216119

2183225625 has 135 divisors (see below), whose sum is σ = 4636133931. Its totient is φ = 986832000.

The previous prime is 2183225521. The next prime is 2183225633. The reversal of 2183225625 is 5265223812.

It is a happy number.

The square root of 2183225625 is 46725.

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

2183225625 is a `hidden beast` number, since 2 + 1 + 8 + 3 + 2 + 25 + 625 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 2120878809 + 62346816 = 46053^2 + 7896^2 .

It is not a de Polignac number, because 2183225625 - 223 = 2174837017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2183225625.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 24530581 + ... + 24530669.

Almost surely, 22183225625 is an apocalyptic number.

2183225625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2183225625 is the 46725-th square number.

2183225625 is the 23363-rd centered octagonal number.

It is an amenable number.

2183225625 is an abundant number, since it is smaller than the sum of its proper divisors (2452908306).

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

2183225625 is an frugal number, since it uses more digits than its factorization.

2183225625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 104 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The cubic root of 2183225625 is about 1297.2774630317.

Multiplying 2183225625 by its sum of digits (36), we get a square (78596122500 = 2803502).

Multiplying 2183225625 by its product of digits (57600), we get a square (125753796000000 = 112140002).

The spelling of 2183225625 in words is "two billion, one hundred eighty-three million, two hundred twenty-five thousand, six hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 49 63 75 89 105 125 147 175 225 245 267 315 375 441 445 525 623 625 735 801 875 1125 1225 1335 1575 1869 1875 2205 2225 2625 3115 3675 4005 4361 4375 5607 5625 6125 6675 7875 7921 9345 11025 11125 13083 13125 15575 18375 20025 21805 23763 28035 30625 33375 39249 39375 39605 46725 55125 55447 55625 65415 71289 77875 91875 100125 109025 118815 140175 166341 166875 196245 198025 233625 275625 277235 327075 356445 388129 389375 499023 500625 545125 594075 700875 831705 981225 990125 1164387 1168125 1386175 1635375 1782225 1940645 2495115 2725625 2970375 3493161 3504375 4158525 4906125 4950625 5821935 6930875 8176875 8911125 9703225 12475575 14851875 17465805 20792625 24530625 29109675 34654375 44555625 48516125 62377875 87329025 103963125 145548375 242580625 311889375 436645125 727741875 2183225625