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70038137 = 1313993851
BaseRepresentation
bin1000010110010…
…11001001111001
311212210022021002
410023023021321
5120412210022
610541054345
71510212551
oct413131171
9155708232
1070038137
1136597764
121b5573b5
1311682cb0
149432161
156237092
hex42cb279

70038137 has 8 divisors (see below), whose sum is σ = 75499200. Its totient is φ = 64587600.

The previous prime is 70038121. The next prime is 70038149. The reversal of 70038137 is 73183007.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70038137 - 24 = 70038121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70038107) 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, 16262 + ... + 20112.

It is an arithmetic number, because the mean of its divisors is an integer number (9437400).

Almost surely, 270038137 is an apocalyptic number.

It is an amenable number.

70038137 is a deficient number, since it is larger than the sum of its proper divisors (5461063).

70038137 is a wasteful number, since it uses less digits than its factorization.

70038137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70038137 is about 8368.8790766745. The cubic root of 70038137 is about 412.2033608964.

The spelling of 70038137 in words is "seventy million, thirty-eight thousand, one hundred thirty-seven".

Divisors: 1 13 1399 3851 18187 50063 5387549 70038137