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84807401 = 712115343
BaseRepresentation
bin1010000111000…
…00111011101001
312220120122212212
411003200323221
5133202314101
612225414505
72046564620
oct503407351
9186518785
1084807401
1143965068
122449a435
13147545c3
14b3986b7
1576a31bb
hex50e0ee9

84807401 has 4 divisors (see below), whose sum is σ = 96922752. Its totient is φ = 72692052.

The previous prime is 84807389. The next prime is 84807403. The reversal of 84807401 is 10470848.

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-84807401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84807403) 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, 6057665 + ... + 6057678.

It is an arithmetic number, because the mean of its divisors is an integer number (24230688).

Almost surely, 284807401 is an apocalyptic number.

It is an amenable number.

84807401 is a deficient number, since it is larger than the sum of its proper divisors (12115351).

84807401 is a wasteful number, since it uses less digits than its factorization.

84807401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115350.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 84807401 is about 9209.0933864306. The cubic root of 84807401 is about 439.3506278421.

The spelling of 84807401 in words is "eighty-four million, eight hundred seven thousand, four hundred one".

Divisors: 1 7 12115343 84807401