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84944710420 = 2254247235521
BaseRepresentation
bin100111100011100011…
…0010110101100010100
322010020221110101111221
41033013012112230110
52342431321213140
6103004551540124
76065003060653
oct1170706265424
9263227411457
1084944710420
1133030090219
121456798a644
1380196a577b
14417b76719a
15232265314a
hex13c7196b14

84944710420 has 12 divisors (see below), whose sum is σ = 178383891924. Its totient is φ = 33977884160.

The previous prime is 84944710397. The next prime is 84944710429. The reversal of 84944710420 is 2401744948.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48630834576 + 36313875844 = 220524^2 + 190562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84944710429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123617741 + ... + 2123617780.

It is an arithmetic number, because the mean of its divisors is an integer number (14865324327).

Almost surely, 284944710420 is an apocalyptic number.

It is an amenable number.

84944710420 is an abundant number, since it is smaller than the sum of its proper divisors (93439181504).

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

84944710420 is a wasteful number, since it uses less digits than its factorization.

84944710420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247235530 (or 4247235528 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 84944710420 in words is "eighty-four billion, nine hundred forty-four million, seven hundred ten thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 4247235521 8494471042 16988942084 21236177605 42472355210 84944710420