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228074617 = 647352511
BaseRepresentation
bin11011001100000…
…10010001111001
3120220011101120001
431212002101321
5431341341432
634344233001
75436413401
oct1546022171
9526141501
10228074617
11107818921
126446b761
1338336ac4
142240d801
15150529e7
hexd982479

228074617 has 4 divisors (see below), whose sum is σ = 228427776. Its totient is φ = 227721460.

The previous prime is 228074591. The next prime is 228074681. The reversal of 228074617 is 716470822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228074617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228074687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175609 + ... + 176902.

It is an arithmetic number, because the mean of its divisors is an integer number (57106944).

Almost surely, 2228074617 is an apocalyptic number.

It is an amenable number.

228074617 is a deficient number, since it is larger than the sum of its proper divisors (353159).

228074617 is an equidigital number, since it uses as much as digits as its factorization.

228074617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353158.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 228074617 is about 15102.1394841923. The cubic root of 228074617 is about 610.9781109927.

The spelling of 228074617 in words is "two hundred twenty-eight million, seventy-four thousand, six hundred seventeen".

Divisors: 1 647 352511 228074617