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84744141 = 3211133877
BaseRepresentation
bin1010000110100…
…01011111001101
312220110110002220
411003101133031
5133143303031
612224205553
72046212316
oct503213715
9186413086
1084744141
1143921589
12244698b9
1314731881
14b37d60d
15768e596
hex50d17cd

84744141 has 8 divisors (see below), whose sum is σ = 113528544. Its totient is φ = 56227920.

The previous prime is 84744137. The next prime is 84744157. The reversal of 84744141 is 14144748.

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

It is not a de Polignac number, because 84744141 - 22 = 84744137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84744131) 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, 66306 + ... + 67571.

It is an arithmetic number, because the mean of its divisors is an integer number (14191068).

Almost surely, 284744141 is an apocalyptic number.

It is an amenable number.

84744141 is a deficient number, since it is larger than the sum of its proper divisors (28784403).

84744141 is a wasteful number, since it uses less digits than its factorization.

84744141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134091.

The product of its digits is 14336, while the sum is 33.

The square root of 84744141 is about 9205.6580970618. The cubic root of 84744141 is about 439.2413597286.

Adding to 84744141 its reverse (14144748), we get a palindrome (98888889).

The spelling of 84744141 in words is "eighty-four million, seven hundred forty-four thousand, one hundred forty-one".

Divisors: 1 3 211 633 133877 401631 28248047 84744141