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70664585 = 514132917
BaseRepresentation
bin1000011011001…
…00000110001001
311220222010120212
410031210012021
5121042231320
611002330505
71515432125
oct415440611
9156863525
1070664585
1136985392
121b7b9a35
1311842184
149556585
15630c9c5
hex4364189

70664585 has 4 divisors (see below), whose sum is σ = 84797508. Its totient is φ = 56531664.

The previous prime is 70664557. The next prime is 70664617. The reversal of 70664585 is 58546607.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53392249 + 17272336 = 7307^2 + 4156^2 .

It is a cyclic number.

It is not a de Polignac number, because 70664585 - 210 = 70663561 is a prime.

It is a super-3 number, since 3×706645853 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7066454 + ... + 7066463.

It is an arithmetic number, because the mean of its divisors is an integer number (21199377).

Almost surely, 270664585 is an apocalyptic number.

It is an amenable number.

70664585 is a deficient number, since it is larger than the sum of its proper divisors (14132923).

70664585 is a wasteful number, since it uses less digits than its factorization.

70664585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14132922.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 70664585 is about 8406.2229925217. Note that the first 3 decimals coincide. The cubic root of 70664585 is about 413.4286832719.

The spelling of 70664585 in words is "seventy million, six hundred sixty-four thousand, five hundred eighty-five".

Divisors: 1 5 14132917 70664585