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84021461 = 236159887
BaseRepresentation
bin1010000001000…
…01000011010101
312212002201202222
411000201003111
5133002141321
612200512125
72040112346
oct500410325
9185081688
1084021461
1143478627
122417b645
131453a954
14b2320cd
15759a3ab
hex50210d5

84021461 has 8 divisors (see below), whose sum is σ = 89113344. Its totient is φ = 79049520.

The previous prime is 84021449. The next prime is 84021491. The reversal of 84021461 is 16412048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84021461 - 210 = 84020437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84021461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84021491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28541 + ... + 31346.

It is an arithmetic number, because the mean of its divisors is an integer number (11139168).

Almost surely, 284021461 is an apocalyptic number.

It is an amenable number.

84021461 is a deficient number, since it is larger than the sum of its proper divisors (5091883).

84021461 is a wasteful number, since it uses less digits than its factorization.

84021461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59971.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 84021461 is about 9166.3221086759. The cubic root of 84021461 is about 437.9892079797.

The spelling of 84021461 in words is "eighty-four million, twenty-one thousand, four hundred sixty-one".

Divisors: 1 23 61 1403 59887 1377401 3653107 84021461