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641337 = 3313683
BaseRepresentation
bin10011100100100111001
31012120202020
42130210321
5131010322
621425053
75310534
oct2344471
91176666
10641337
113a8934
1226b189
13195bb8
14129a1b
15ca05c
hex9c939

641337 has 8 divisors (see below), whose sum is σ = 859104. Its totient is φ = 425568.

The previous prime is 641327. The next prime is 641371. The reversal of 641337 is 733146.

641337 is nontrivially palindromic in base 2.

641337 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 de Polignac number, because none of the positive numbers 2k-641337 is a prime.

It is a super-2 number, since 2×6413372 = 822626295138, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 641337.

It is not an unprimeable number, because it can be changed into a prime (641317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (107388).

2641337 is an apocalyptic number.

It is an amenable number.

641337 is a deficient number, since it is larger than the sum of its proper divisors (217767).

641337 is a wasteful number, since it uses less digits than its factorization.

641337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999.

The product of its digits is 1512, while the sum is 24.

The square root of 641337 is about 800.8351890370. The cubic root of 641337 is about 86.2373558444.

Subtracting 641337 from its reverse (733146), we obtain a square (91809 = 3032).

The spelling of 641337 in words is "six hundred forty-one thousand, three hundred thirty-seven".

Divisors: 1 3 313 683 939 2049 213779 641337