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225488578 = 2717947431
BaseRepresentation
bin11010111000010…
…10111011000010
3120201022000011211
431130022323002
5430211113303
634213000334
75405423050
oct1534127302
9521260154
10225488578
111063119a7
12636230aa
133793c9c3
1421d391d0
1514be166d
hexd70aec2

225488578 has 16 divisors (see below), whose sum is σ = 409290624. Its totient is φ = 90953280.

The previous prime is 225488539. The next prime is 225488579. The reversal of 225488578 is 875884522.

225488578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (225488579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473478 + ... + 473953.

It is an arithmetic number, because the mean of its divisors is an integer number (25580664).

Almost surely, 2225488578 is an apocalyptic number.

225488578 is a deficient number, since it is larger than the sum of its proper divisors (183802046).

225488578 is a wasteful number, since it uses less digits than its factorization.

225488578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947457.

The product of its digits is 1433600, while the sum is 49.

The square root of 225488578 is about 15016.2771018652. The cubic root of 225488578 is about 608.6601227802.

The spelling of 225488578 in words is "two hundred twenty-five million, four hundred eighty-eight thousand, five hundred seventy-eight".

Divisors: 1 2 7 14 17 34 119 238 947431 1894862 6632017 13264034 16106327 32212654 112744289 225488578