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64263377 = 199913413
BaseRepresentation
bin1111010100100…
…1010011010001
311110220220210002
43311021103101
5112422412002
610213215345
71410141533
oct365112321
9143826702
1064263377
1133303032
1219631555
1310410689
14876b853
155996002
hex3d494d1

64263377 has 8 divisors (see below), whose sum is σ = 67733760. Its totient is φ = 60801840.

The previous prime is 64263347. The next prime is 64263421. The reversal of 64263377 is 77336246.

It is a happy number.

64263377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 64263377 - 26 = 64263313 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 64263377.

It is not an unprimeable number, because it can be changed into a prime (64263337) 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, 17123 + ... + 20535.

It is an arithmetic number, because the mean of its divisors is an integer number (8466720).

Almost surely, 264263377 is an apocalyptic number.

It is an amenable number.

64263377 is a deficient number, since it is larger than the sum of its proper divisors (3470383).

64263377 is a wasteful number, since it uses less digits than its factorization.

64263377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423.

The product of its digits is 127008, while the sum is 38.

The square root of 64263377 is about 8016.4441618463. Note that the first 3 decimals coincide. The cubic root of 64263377 is about 400.5479511145.

The spelling of 64263377 in words is "sixty-four million, two hundred sixty-three thousand, three hundred seventy-seven".

Divisors: 1 19 991 3413 18829 64847 3382283 64263377