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84072106 = 21721111719
BaseRepresentation
bin1010000001011…
…01011010101010
312212012022020201
411000231122222
5133010301411
612201542414
72040413116
oct500553252
9185168221
1084072106
1143502688
12241a4a0a
1314557a11
14b246746
1575aa3c1
hex502d6aa

84072106 has 16 divisors (see below), whose sum is σ = 134170560. Its totient is φ = 39372480.

The previous prime is 84072101. The next prime is 84072133. The reversal of 84072106 is 60127048.

It is not an unprimeable number, because it can be changed into a prime (84072101) 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, 1315 + ... + 13033.

It is an arithmetic number, because the mean of its divisors is an integer number (8385660).

Almost surely, 284072106 is an apocalyptic number.

84072106 is a deficient number, since it is larger than the sum of its proper divisors (50098454).

84072106 is a wasteful number, since it uses less digits than its factorization.

84072106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11949.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 84072106 is about 9169.0842508944. The cubic root of 84072106 is about 438.0771914855.

The spelling of 84072106 in words is "eighty-four million, seventy-two thousand, one hundred six".

Divisors: 1 2 17 34 211 422 3587 7174 11719 23438 199223 398446 2472709 4945418 42036053 84072106