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70744807 = 710106401
BaseRepresentation
bin1000011011101…
…11101011100111
311221010012122001
410031313223213
5121102313212
611004150131
71516215040
oct415675347
9157105561
1070744807
1136a2a691
121b838347
131186c843
1495778c7
156326657
hex4377ae7

70744807 has 4 divisors (see below), whose sum is σ = 80851216. Its totient is φ = 60638400.

The previous prime is 70744787. The next prime is 70744813. The reversal of 70744807 is 70844707.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70744807 - 27 = 70744679 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 (70744507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5053194 + ... + 5053207.

It is an arithmetic number, because the mean of its divisors is an integer number (20212804).

Almost surely, 270744807 is an apocalyptic number.

70744807 is a deficient number, since it is larger than the sum of its proper divisors (10106409).

70744807 is a wasteful number, since it uses less digits than its factorization.

70744807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106408.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 70744807 is about 8410.9932231574. The cubic root of 70744807 is about 413.5850724690.

It can be divided in two parts, 7074 and 4807, that added together give a square (11881 = 1092).

The spelling of 70744807 in words is "seventy million, seven hundred forty-four thousand, eight hundred seven".

Divisors: 1 7 10106401 70744807