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70968583 = 710138369
BaseRepresentation
bin1000011101011…
…10010100000111
311221112120121001
410032232110013
5121131443313
611013034131
71521136330
oct416562407
9157476531
1070968583
1137072824
121b925947
131191a65a
1495d5287
15636cadd
hex43ae507

70968583 has 4 divisors (see below), whose sum is σ = 81106960. Its totient is φ = 60830208.

The previous prime is 70968529. The next prime is 70968587. The reversal of 70968583 is 38586907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38586907 = 291330583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70968583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70968587) 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 3 ways as a sum of consecutive naturals, for example, 5069178 + ... + 5069191.

It is an arithmetic number, because the mean of its divisors is an integer number (20276740).

Almost surely, 270968583 is an apocalyptic number.

70968583 is a deficient number, since it is larger than the sum of its proper divisors (10138377).

70968583 is a wasteful number, since it uses less digits than its factorization.

70968583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138376.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 70968583 is about 8424.2853109329. The cubic root of 70968583 is about 414.0206898417.

The spelling of 70968583 in words is "seventy million, nine hundred sixty-eight thousand, five hundred eighty-three".

Divisors: 1 7 10138369 70968583