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70825812 = 2235902151
BaseRepresentation
bin1000011100010…
…11011101010100
311221021022202020
410032023131110
5121112411222
611010013140
71520003151
oct416133524
9157238666
1070825812
1136a85532
121b8771b0
131189a685
149599228
15634065c
hex438b754

70825812 has 12 divisors (see below), whose sum is σ = 165260256. Its totient is φ = 23608600.

The previous prime is 70825771. The next prime is 70825813. The reversal of 70825812 is 21852807.

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 (70825813) 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, 2951064 + ... + 2951087.

It is an arithmetic number, because the mean of its divisors is an integer number (13771688).

Almost surely, 270825812 is an apocalyptic number.

It is an amenable number.

70825812 is an abundant number, since it is smaller than the sum of its proper divisors (94434444).

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

70825812 is a wasteful number, since it uses less digits than its factorization.

70825812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902158 (or 5902156 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 70825812 is about 8415.8072696563. The cubic root of 70825812 is about 413.7428681727.

The spelling of 70825812 in words is "seventy million, eight hundred twenty-five thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 5902151 11804302 17706453 23608604 35412906 70825812