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70287282 = 232131717669
BaseRepresentation
bin1000011000001…
…11111110110010
311220020222000200
410030013332302
5120443143112
610550300030
71512301122
oct414077662
9156228020
1070287282
113674796a
121b657616
131173c510
149498c82
156285cdc
hex4307fb2

70287282 has 48 divisors (see below), whose sum is σ = 173660760. Its totient is φ = 20353536.

The previous prime is 70287281. The next prime is 70287293. The reversal of 70287282 is 28278207.

It can be written as a sum of positive squares in 4 ways, for example, as 47734281 + 22553001 = 6909^2 + 4749^2 .

It is not an unprimeable number, because it can be changed into a prime (70287281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4857 + ... + 12812.

Almost surely, 270287282 is an apocalyptic number.

70287282 is an abundant number, since it is smaller than the sum of its proper divisors (103373478).

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

70287282 is a wasteful number, since it uses less digits than its factorization.

70287282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17707 (or 17704 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 70287282 is about 8383.7510697778. The cubic root of 70287282 is about 412.6915562107.

The spelling of 70287282 in words is "seventy million, two hundred eighty-seven thousand, two hundred eighty-two".

Divisors: 1 2 3 6 9 13 17 18 26 34 39 51 78 102 117 153 221 234 306 442 663 1326 1989 3978 17669 35338 53007 106014 159021 229697 300373 318042 459394 600746 689091 901119 1378182 1802238 2067273 2703357 3904849 4134546 5406714 7809698 11714547 23429094 35143641 70287282