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70081302 = 2317236779
BaseRepresentation
bin1000010110101…
…01101100010110
311212212111110210
410023111230112
5120420100202
610542030250
71510452444
oct413255426
9155774423
1070081302
1136617135
121b578386
1311699835
149443b94
156244c6c
hex42d5b16

70081302 has 16 divisors (see below), whose sum is σ = 140264640. Its totient is φ = 23343432.

The previous prime is 70081301. The next prime is 70081307. The reversal of 70081302 is 20318007.

It is a super-2 number, since 2×700813022 = 9822777780030408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70081301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6949 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (8766540).

Almost surely, 270081302 is an apocalyptic number.

70081302 is an abundant number, since it is smaller than the sum of its proper divisors (70183338).

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

70081302 is a wasteful number, since it uses less digits than its factorization.

70081302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8507.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 70081302 is about 8371.4575791794. The cubic root of 70081302 is about 412.2880247896.

Adding to 70081302 its reverse (20318007), we get a palindrome (90399309).

The spelling of 70081302 in words is "seventy million, eighty-one thousand, three hundred two".

Divisors: 1 2 3 6 1723 3446 5169 6779 10338 13558 20337 40674 11680217 23360434 35040651 70081302