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70616271 = 31110121187
BaseRepresentation
bin1000011010110…
…00010011001111
311220212200022110
410031120103033
5121034210041
611001315103
71515141225
oct415302317
9156780273
1070616271
1136952060
121b795a93
131182619b
149542b15
1562ed516
hex43584cf

70616271 has 16 divisors (see below), whose sum is σ = 103736448. Its totient is φ = 42372000.

The previous prime is 70616269. The next prime is 70616281. The reversal of 70616271 is 17261607.

It is a happy number.

It is not a de Polignac number, because 70616271 - 21 = 70616269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70616201) 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 15 ways as a sum of consecutive naturals, for example, 7261 + ... + 13926.

It is an arithmetic number, because the mean of its divisors is an integer number (6483528).

Almost surely, 270616271 is an apocalyptic number.

70616271 is a deficient number, since it is larger than the sum of its proper divisors (33120177).

70616271 is a wasteful number, since it uses less digits than its factorization.

70616271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21302.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 70616271 is about 8403.3487967595. The cubic root of 70616271 is about 413.3344401780.

Adding to 70616271 its reverse (17261607), we get a palindrome (87877878).

The spelling of 70616271 in words is "seventy million, six hundred sixteen thousand, two hundred seventy-one".

Divisors: 1 3 11 33 101 303 1111 3333 21187 63561 233057 699171 2139887 6419661 23538757 70616271