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70888742 = 21711318451
BaseRepresentation
bin1000011100110…
…10110100100110
311221101112001222
410032122310212
5121121414432
611011220342
71520354501
oct416326446
9157345058
1070888742
1137018841
121b8a76b2
13118c0202
1495b4138
156354112
hex439ad26

70888742 has 16 divisors (see below), whose sum is σ = 113590512. Its totient is φ = 33062400.

The previous prime is 70888739. The next prime is 70888777. The reversal of 70888742 is 24788807.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 70888693 and 70888702.

It is a congruent number.

It is an unprimeable number.

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, 5384 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (7099407).

Almost surely, 270888742 is an apocalyptic number.

70888742 is a deficient number, since it is larger than the sum of its proper divisors (42701770).

70888742 is a wasteful number, since it uses less digits than its factorization.

70888742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18583.

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 70888742 is about 8419.5452371253. The cubic root of 70888742 is about 413.8653712092.

The spelling of 70888742 in words is "seventy million, eight hundred eighty-eight thousand, seven hundred forty-two".

Divisors: 1 2 17 34 113 226 1921 3842 18451 36902 313667 627334 2084963 4169926 35444371 70888742