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70183072 = 251727589
BaseRepresentation
bin1000010111011…
…10100010100000
311220001200002001
410023232202200
5120431324242
610544133344
71511355241
oct413564240
9156050061
1070183072
1136686643
121b607254
1311703c5b
14946ccc8
156264eb7
hex42ee8a0

70183072 has 36 divisors (see below), whose sum is σ = 146798190. Its totient is φ = 33022976.

The previous prime is 70183063. The next prime is 70183153. The reversal of 70183072 is 27038107.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 57820816 + 12362256 = 7604^2 + 3516^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70183072.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5454 + ... + 13042.

Almost surely, 270183072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70183072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73399095).

70183072 is an abundant number, since it is smaller than the sum of its proper divisors (76615118).

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

70183072 is a wasteful number, since it uses less digits than its factorization.

70183072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7633 (or 7608 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70183072 is about 8377.5337659719. The cubic root of 70183072 is about 412.4874991008.

The spelling of 70183072 in words is "seventy million, one hundred eighty-three thousand, seventy-two".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 289 544 578 1156 2312 4624 7589 9248 15178 30356 60712 121424 129013 242848 258026 516052 1032104 2064208 2193221 4128416 4386442 8772884 17545768 35091536 70183072