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50228145 = 32511293499
BaseRepresentation
bin1011111110011…
…0101110110001
310111111212001200
42333212232301
5100324300040
64552321413
71146634512
oct277465661
9114455050
1050228145
1126397170
12149a3269
13a5381c6
146956a09
154622630
hex2fe6bb1

50228145 has 48 divisors (see below), whose sum is σ = 98280000. Its totient is φ = 23506560.

The previous prime is 50228141. The next prime is 50228177. The reversal of 50228145 is 54182205.

It is a happy number.

It is not a de Polignac number, because 50228145 - 22 = 50228141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50228141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12606 + ... + 16104.

It is an arithmetic number, because the mean of its divisors is an integer number (2047500).

Almost surely, 250228145 is an apocalyptic number.

50228145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50228145 is a deficient number, since it is larger than the sum of its proper divisors (48051855).

50228145 is a wasteful number, since it uses less digits than its factorization.

50228145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 50228145 is about 7087.1817388861. The cubic root of 50228145 is about 368.9626286871.

The spelling of 50228145 in words is "fifty million, two hundred twenty-eight thousand, one hundred forty-five".

Divisors: 1 3 5 9 11 15 29 33 45 55 87 99 145 165 261 319 435 495 957 1305 1595 2871 3499 4785 10497 14355 17495 31491 38489 52485 101471 115467 157455 192445 304413 346401 507355 577335 913239 1116181 1522065 1732005 3348543 4566195 5580905 10045629 16742715 50228145