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64136361 = 322395869
BaseRepresentation
bin1111010010101…
…0010010101001
311110200110112210
43310222102221
5112404330421
610210355333
71406102322
oct364522251
9143613483
1064136361
1133226663
121958bb49
1310397913
148737449
15596d576
hex3d2a4a9

64136361 has 8 divisors (see below), whose sum is σ = 85899520. Its totient is φ = 42565392.

The previous prime is 64136339. The next prime is 64136383. The reversal of 64136361 is 16363146.

64136361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64136339) and next prime (64136383).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64136361 - 25 = 64136329 is a prime.

It is a super-2 number, since 2×641363612 = 8226945604644642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64136321) 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 7 ways as a sum of consecutive naturals, for example, 47266 + ... + 48603.

It is an arithmetic number, because the mean of its divisors is an integer number (10737440).

Almost surely, 264136361 is an apocalyptic number.

It is an amenable number.

64136361 is a deficient number, since it is larger than the sum of its proper divisors (21763159).

64136361 is a wasteful number, since it uses less digits than its factorization.

64136361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96095.

The product of its digits is 7776, while the sum is 30.

The square root of 64136361 is about 8008.5180277003. The cubic root of 64136361 is about 400.2838838938.

The spelling of 64136361 in words is "sixty-four million, one hundred thirty-six thousand, three hundred sixty-one".

Divisors: 1 3 223 669 95869 287607 21378787 64136361