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228050521 = 1913618819
BaseRepresentation
bin11011001011111…
…00011001011001
3120220010011111121
431211330121121
5431340104041
634343525241
75436253216
oct1545743131
9526104447
10228050521
11107801806
1264459821
1338328b4a
1422404b0d
151504a7d1
hexd97c659

228050521 has 8 divisors (see below), whose sum is σ = 240256800. Its totient is φ = 215864640.

The previous prime is 228050479. The next prime is 228050527. The reversal of 228050521 is 125050822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228050521 - 217 = 227919449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228050527) 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, 21450 + ... + 30268.

It is an arithmetic number, because the mean of its divisors is an integer number (30032100).

Almost surely, 2228050521 is an apocalyptic number.

It is an amenable number.

228050521 is a deficient number, since it is larger than the sum of its proper divisors (12206279).

228050521 is a wasteful number, since it uses less digits than its factorization.

228050521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 228050521 is about 15101.3416953594. The cubic root of 228050521 is about 610.9565936969.

The spelling of 228050521 in words is "two hundred twenty-eight million, fifty thousand, five hundred twenty-one".

Divisors: 1 19 1361 8819 25859 167561 12002659 228050521