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84206061 = 37139277
BaseRepresentation
bin1010000010011…
…10000111101101
312212110010000000
411001032013231
5133024043221
612204454513
72041511502
oct501160755
9185403000
1084206061
1143594295
122424a439
13145a3994
14b27d4a9
1575d4e26
hex504e1ed

84206061 has 32 divisors (see below), whose sum is σ = 127657600. Its totient is φ = 55532304.

The previous prime is 84206041. The next prime is 84206063. The reversal of 84206061 is 16060248.

It is not a de Polignac number, because 84206061 - 211 = 84204013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84206063) 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, 303855 + ... + 304131.

It is an arithmetic number, because the mean of its divisors is an integer number (3989300).

Almost surely, 284206061 is an apocalyptic number.

84206061 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

84206061 is a deficient number, since it is larger than the sum of its proper divisors (43451539).

84206061 is an equidigital number, since it uses as much as digits as its factorization.

84206061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 84206061 is about 9176.3860533437. The cubic root of 84206061 is about 438.3097358791.

The spelling of 84206061 in words is "eighty-four million, two hundred six thousand, sixty-one".

Divisors: 1 3 9 27 81 139 243 277 417 729 831 1251 2187 2493 3753 7479 11259 22437 33777 38503 67311 101331 115509 201933 303993 346527 605799 1039581 3118743 9356229 28068687 84206061