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20070084 = 2231672507
BaseRepresentation
bin100110010001…
…1111011000100
31101202122222110
41030203323010
520114220314
61554101020
7332410236
oct114437304
941678873
1020070084
1110368a51
12687a770
1342092b8
142946256
151b66a59
hex1323ec4

20070084 has 12 divisors (see below), whose sum is σ = 46830224. Its totient is φ = 6690024.

The previous prime is 20070049. The next prime is 20070101. The reversal of 20070084 is 48007002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20070084.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836242 + ... + 836265.

Almost surely, 220070084 is an apocalyptic number.

It is an amenable number.

20070084 is an abundant number, since it is smaller than the sum of its proper divisors (26760140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20070084 is a wasteful number, since it uses less digits than its factorization.

20070084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672514 (or 1672512 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 20070084 is about 4479.9647320040. The cubic root of 20070084 is about 271.7584541029.

Adding to 20070084 its reverse (48007002), we get a palindrome (68077086).

The spelling of 20070084 in words is "twenty million, seventy thousand, eighty-four".

Divisors: 1 2 3 4 6 12 1672507 3345014 5017521 6690028 10035042 20070084