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84168007 = 7113137953
BaseRepresentation
bin1010000010001…
…00110101000111
312212101011210121
411001010311013
5133021334012
612204002411
72041262530
oct501046507
9185334717
1084168007
1143568740
1224230407
131458c571
14b26d687
1575c8a07
hex5044d47

84168007 has 32 divisors (see below), whose sum is σ = 111366144. Its totient is φ = 61689600.

The previous prime is 84168001. The next prime is 84168061. The reversal of 84168007 is 70086148.

It is a happy number.

It is not a de Polignac number, because 84168007 - 23 = 84167999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84168001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87843 + ... + 88795.

It is an arithmetic number, because the mean of its divisors is an integer number (3480192).

Almost surely, 284168007 is an apocalyptic number.

84168007 is a deficient number, since it is larger than the sum of its proper divisors (27198137).

84168007 is a wasteful number, since it uses less digits than its factorization.

84168007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 84168007 is about 9174.3123448027. The cubic root of 84168007 is about 438.2436996513.

The spelling of 84168007 in words is "eighty-four million, one hundred sixty-eight thousand, seven".

Divisors: 1 7 11 31 37 77 217 259 341 407 953 1147 2387 2849 6671 8029 10483 12617 29543 35261 73381 88319 206801 246827 324973 387871 1093091 2274811 2715097 7651637 12024001 84168007