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308053 = 1072879
BaseRepresentation
bin1001011001101010101
3120122120101
41023031111
534324203
610334101
72422054
oct1131525
9518511
10308053
111a0499
1212a331
13aa2a5
148039b
156141d
hex4b355

308053 has 4 divisors (see below), whose sum is σ = 311040. Its totient is φ = 305068.

The previous prime is 308051. The next prime is 308081. The reversal of 308053 is 350803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 308053 - 21 = 308051 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 308053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333 + ... + 1546.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2308053 is an apocalyptic number.

It is an amenable number.

308053 is a deficient number, since it is larger than the sum of its proper divisors (2987).

308053 is a wasteful number, since it uses less digits than its factorization.

308053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 308053 is about 555.0252246520. The cubic root of 308053 is about 67.5370075986.

Adding to 308053 its reverse (350803), we get a palindrome (658856).

The spelling of 308053 in words is "three hundred eight thousand, fifty-three".

Divisors: 1 107 2879 308053