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82070484 = 2236839207
BaseRepresentation
bin1001110010001…
…00101111010100
312201102121112120
410321010233110
5132002223414
612051015540
72014405356
oct471045724
9181377476
1082070484
1142365851
122359a5b0
1314006922
14ac850d6
1573122a9
hex4e44bd4

82070484 has 12 divisors (see below), whose sum is σ = 191497824. Its totient is φ = 27356824.

The previous prime is 82070473. The next prime is 82070489. The reversal of 82070484 is 48407028.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82070489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3419592 + ... + 3419615.

It is an arithmetic number, because the mean of its divisors is an integer number (15958152).

Almost surely, 282070484 is an apocalyptic number.

It is an amenable number.

82070484 is an abundant number, since it is smaller than the sum of its proper divisors (109427340).

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

82070484 is a wasteful number, since it uses less digits than its factorization.

82070484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839214 (or 6839212 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 82070484 is about 9059.2761300228. The cubic root of 82070484 is about 434.5725911532.

The spelling of 82070484 in words is "eighty-two million, seventy thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 6839207 13678414 20517621 27356828 41035242 82070484