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224270525 = 528970821
BaseRepresentation
bin11010101111000…
…01100010111101
3120122000010022202
431113201202331
5424403124100
634130521245
75362160633
oct1527414275
9518003282
10224270525
1110565a846
1263136225
133760446b
1421add353
1514a507d5
hexd5e18bd

224270525 has 6 divisors (see below), whose sum is σ = 278095482. Its totient is φ = 179416400.

The previous prime is 224270491. The next prime is 224270537. The reversal of 224270525 is 525072422.

It can be written as a sum of positive squares in 3 ways, for example, as 8826841 + 215443684 = 2971^2 + 14678^2 .

It is not a de Polignac number, because 224270525 - 210 = 224269501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4485386 + ... + 4485435.

It is an arithmetic number, because the mean of its divisors is an integer number (46349247).

Almost surely, 2224270525 is an apocalyptic number.

224270525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224270525 is a deficient number, since it is larger than the sum of its proper divisors (53824957).

224270525 is an equidigital number, since it uses as much as digits as its factorization.

224270525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970831 (or 8970826 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 224270525 is about 14975.6644259946. The cubic root of 224270525 is about 607.5621820999.

The spelling of 224270525 in words is "two hundred twenty-four million, two hundred seventy thousand, five hundred twenty-five".

Divisors: 1 5 25 8970821 44854105 224270525