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70828465 = 5831031657
BaseRepresentation
bin1000011100011…
…00000110110001
311221021110101111
410032030012301
5121113002330
611010033321
71520013661
oct416140661
9157243344
1070828465
1136a87524
121b878841
131189b946
14959a1a1
15634132a
hex438c1b1

70828465 has 16 divisors (see below), whose sum is σ = 86905728. Its totient is φ = 55403136.

The previous prime is 70828463. The next prime is 70828487. The reversal of 70828465 is 56482807.

It is a cyclic number.

It is not a de Polignac number, because 70828465 - 21 = 70828463 is a prime.

It is a super-3 number, since 3×708284653 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70828463) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41917 + ... + 43573.

It is an arithmetic number, because the mean of its divisors is an integer number (5431608).

Almost surely, 270828465 is an apocalyptic number.

It is an amenable number.

70828465 is a deficient number, since it is larger than the sum of its proper divisors (16077263).

70828465 is a wasteful number, since it uses less digits than its factorization.

70828465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 70828465 is about 8415.9648882347. The cubic root of 70828465 is about 413.7480341147.

The spelling of 70828465 in words is "seventy million, eight hundred twenty-eight thousand, four hundred sixty-five".

Divisors: 1 5 83 103 415 515 1657 8285 8549 42745 137531 170671 687655 853355 14165693 70828465