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84022013 = 235368927
BaseRepresentation
bin1010000001000…
…01001011111101
312212002202112102
411000201023331
5133002201023
612200514445
72040114065
oct500411375
9185082472
1084022013
1143478a89
122417ba25
131453ac8a
14b2323a5
15759a628
hex50212fd

84022013 has 8 divisors (see below), whose sum is σ = 89330688. Its totient is φ = 78851344.

The previous prime is 84021991. The next prime is 84022021. The reversal of 84022013 is 31022048.

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 84022013 - 28 = 84021757 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 (84022073) 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, 33245 + ... + 35682.

It is an arithmetic number, because the mean of its divisors is an integer number (11166336).

Almost surely, 284022013 is an apocalyptic number.

It is an amenable number.

84022013 is a deficient number, since it is larger than the sum of its proper divisors (5308675).

84022013 is a wasteful number, since it uses less digits than its factorization.

84022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69003.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 84022013 is about 9166.3522188491. The cubic root of 84022013 is about 437.9901671375.

The spelling of 84022013 in words is "eighty-four million, twenty-two thousand, thirteen".

Divisors: 1 23 53 1219 68927 1585321 3653131 84022013