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70200650 = 25213176353
BaseRepresentation
bin1000010111100…
…10110101001010
311220002120012002
410023302311022
5120432410100
610544351002
71511460422
oct413626512
9156076162
1070200650
1136698873
121b615462
131170bc60
149475482
15626a2d5
hex42f2d4a

70200650 has 48 divisors (see below), whose sum is σ = 148912344. Its totient is φ = 24391680.

The previous prime is 70200629. The next prime is 70200671. The reversal of 70200650 is 5600207.

It is an interprime number because it is at equal distance from previous prime (70200629) and next prime (70200671).

It can be written as a sum of positive squares in 12 ways, for example, as 2319529 + 67881121 = 1523^2 + 8239^2 .

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7874 + ... + 14226.

Almost surely, 270200650 is an apocalyptic number.

70200650 is an abundant number, since it is smaller than the sum of its proper divisors (78711694).

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

70200650 is a wasteful number, since it uses less digits than its factorization.

70200650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395 (or 6390 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 70200650 is about 8378.5828157273. The cubic root of 70200650 is about 412.5219333302.

Adding to 70200650 its reverse (5600207), we get a palindrome (75800857).

The spelling of 70200650 in words is "seventy million, two hundred thousand, six hundred fifty".

Divisors: 1 2 5 10 13 17 25 26 34 50 65 85 130 170 221 325 425 442 650 850 1105 2210 5525 6353 11050 12706 31765 63530 82589 108001 158825 165178 216002 317650 412945 540005 825890 1080010 1404013 2064725 2700025 2808026 4129450 5400050 7020065 14040130 35100325 70200650