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6638053 = 232571123
BaseRepresentation
bin11001010100100111100101
3110111020200211
4121110213211
53144404203
6354135421
7110264632
oct31244745
913436624
106638053
1138242a4
122281571
1314b5556
14c4b189
158b1c6d
hex6549e5

6638053 has 8 divisors (see below), whose sum is σ = 6959808. Its totient is φ = 6319104.

The previous prime is 6638029. The next prime is 6638057. The reversal of 6638053 is 3508366.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6638053 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 (6638057) 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, 5350 + ... + 6472.

It is an arithmetic number, because the mean of its divisors is an integer number (869976).

Almost surely, 26638053 is an apocalyptic number.

It is an amenable number.

6638053 is a deficient number, since it is larger than the sum of its proper divisors (321755).

6638053 is a wasteful number, since it uses less digits than its factorization.

6638053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 6638053 is about 2576.4419263783. The cubic root of 6638053 is about 187.9375547097.

The spelling of 6638053 in words is "six million, six hundred thirty-eight thousand, fifty-three".

Divisors: 1 23 257 1123 5911 25829 288611 6638053