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70122650 = 25213107881
BaseRepresentation
bin1000010110111…
…11110010011010
311212221121012012
410023133302122
5120422411100
610542545522
71511014133
oct413376232
9155847165
1070122650
1136645204
121b5982a2
13116b25c0
149454c8a
156252135
hex42dfc9a

70122650 has 24 divisors (see below), whose sum is σ = 140462364. Its totient is φ = 25891200.

The previous prime is 70122649. The next prime is 70122677. The reversal of 70122650 is 5622107.

It can be written as a sum of positive squares in 6 ways, for example, as 6713281 + 63409369 = 2591^2 + 7963^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53291 + ... + 54590.

Almost surely, 270122650 is an apocalyptic number.

70122650 is an abundant number, since it is smaller than the sum of its proper divisors (70339714).

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

70122650 is a wasteful number, since it uses less digits than its factorization.

70122650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107906 (or 107901 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 70122650 is about 8373.9267969096. The cubic root of 70122650 is about 412.3690922224.

Adding to 70122650 its reverse (5622107), we get a palindrome (75744757).

The spelling of 70122650 in words is "seventy million, one hundred twenty-two thousand, six hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 107881 215762 539405 1078810 1402453 2697025 2804906 5394050 7012265 14024530 35061325 70122650