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84889753 = 136529981
BaseRepresentation
bin1010000111101…
…01000010011001
312220201211211221
411003311002121
5133212433003
612231252041
72050356664
oct503650231
9186654757
1084889753
1143a10a23
122451a021
1314782c30
14b3ba6db
1576bc7bd
hex50f5099

84889753 has 4 divisors (see below), whose sum is σ = 91419748. Its totient is φ = 78359760.

The previous prime is 84889751. The next prime is 84889769. The reversal of 84889753 is 35798848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40106889 + 44782864 = 6333^2 + 6692^2 .

It is a cyclic number.

It is not a de Polignac number, because 84889753 - 21 = 84889751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84889753.

It is not an unprimeable number, because it can be changed into a prime (84889751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264978 + ... + 3265003.

It is an arithmetic number, because the mean of its divisors is an integer number (22854937).

Almost surely, 284889753 is an apocalyptic number.

It is an amenable number.

84889753 is a deficient number, since it is larger than the sum of its proper divisors (6529995).

84889753 is a wasteful number, since it uses less digits than its factorization.

84889753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529994.

The product of its digits is 1935360, while the sum is 52.

The square root of 84889753 is about 9213.5635342684. The cubic root of 84889753 is about 439.4927919202.

It can be divided in two parts, 848 and 89753, that added together give a square (90601 = 3012).

The spelling of 84889753 in words is "eighty-four million, eight hundred eighty-nine thousand, seven hundred fifty-three".

Divisors: 1 13 6529981 84889753