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84253169 = 71113731153
BaseRepresentation
bin1010000010110…
…01100111110001
312212112111121202
411001121213301
5133032100134
612205500545
72042066030
oct501314761
9185474552
1084253169
1143616720
1224271755
13145bc260
14b292717
1575e3d7e
hex50599f1

84253169 has 32 divisors (see below), whose sum is σ = 114772224. Its totient is φ = 59719680.

The previous prime is 84253129. The next prime is 84253171. The reversal of 84253169 is 96135248.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84253169 is a prime.

It is a super-2 number, since 2×842531692 = 14197192973085122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84253109) 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 31 ways as a sum of consecutive naturals, for example, 72497 + ... + 73649.

It is an arithmetic number, because the mean of its divisors is an integer number (3586632).

Almost surely, 284253169 is an apocalyptic number.

It is an amenable number.

84253169 is a deficient number, since it is larger than the sum of its proper divisors (30519055).

84253169 is a wasteful number, since it uses less digits than its factorization.

84253169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257.

The product of its digits is 51840, while the sum is 38.

The square root of 84253169 is about 9178.9525001495. The cubic root of 84253169 is about 438.3914562271.

The spelling of 84253169 in words is "eighty-four million, two hundred fifty-three thousand, one hundred sixty-nine".

Divisors: 1 7 11 13 73 77 91 143 511 803 949 1001 1153 5621 6643 8071 10439 12683 14989 73073 84169 88781 104923 164879 589183 925859 1094197 1154153 6481013 7659379 12036167 84253169