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227144425 = 529085777
BaseRepresentation
bin11011000100111…
…11001011101001
3120211102010120111
431202133023221
5431122110200
634312254321
75425460434
oct1542371351
9524363514
10227144425
11107242a72
12640a13a1
133809c5b1
142224a81b
1514e1c0ba
hexd89f2e9

227144425 has 6 divisors (see below), whose sum is σ = 281659118. Its totient is φ = 181715520.

The previous prime is 227144417. The next prime is 227144431. The reversal of 227144425 is 524441722.

It can be written as a sum of positive squares in 3 ways, for example, as 33489369 + 193655056 = 5787^2 + 13916^2 .

It is not a de Polignac number, because 227144425 - 23 = 227144417 is a prime.

It is a Duffinian 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, 4542864 + ... + 4542913.

Almost surely, 2227144425 is an apocalyptic number.

227144425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

227144425 is a deficient number, since it is larger than the sum of its proper divisors (54514693).

227144425 is an equidigital number, since it uses as much as digits as its factorization.

227144425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9085787 (or 9085782 counting only the distinct ones).

The product of its digits is 17920, while the sum is 31.

The square root of 227144425 is about 15071.3113231729. The cubic root of 227144425 is about 610.1463636961.

The spelling of 227144425 in words is "two hundred twenty-seven million, one hundred forty-four thousand, four hundred twenty-five".

Divisors: 1 5 25 9085777 45428885 227144425