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70816927 = 2931372129
BaseRepresentation
bin1000011100010…
…01010010011111
311221020212120011
410032021102133
5121112120202
611005504051
71516635226
oct416112237
9157225504
1070816927
1136a79895
121b872027
131189660c
149595cbd
15633cbd7
hex438949f

70816927 has 16 divisors (see below), whose sum is σ = 77702400. Its totient is φ = 64350720.

The previous prime is 70816919. The next prime is 70816937. The reversal of 70816927 is 72961807.

It is a cyclic number.

It is not a de Polignac number, because 70816927 - 23 = 70816919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70816927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70816937) 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, 32199 + ... + 34327.

It is an arithmetic number, because the mean of its divisors is an integer number (4856400).

Almost surely, 270816927 is an apocalyptic number.

70816927 is a deficient number, since it is larger than the sum of its proper divisors (6885473).

70816927 is a wasteful number, since it uses less digits than its factorization.

70816927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 70816927 is about 8415.2793774182. The cubic root of 70816927 is about 413.7255662926.

The spelling of 70816927 in words is "seventy million, eight hundred sixteen thousand, nine hundred twenty-seven".

Divisors: 1 29 31 37 899 1073 1147 2129 33263 61741 65999 78773 1913971 2284417 2441963 70816927