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830953 = 1515503
BaseRepresentation
bin11001010110111101001
31120012212001
43022313221
5203042303
625451001
710030414
oct3126751
91505761
10830953
11518342
12340a61
132312b6
14178b7b
1511631d
hexcade9

830953 has 4 divisors (see below), whose sum is σ = 836608. Its totient is φ = 825300.

The previous prime is 830939. The next prime is 830957. The reversal of 830953 is 359038.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 359038 = 2179519.

It is a cyclic number.

It is not a de Polignac number, because 830953 - 29 = 830441 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830957) 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, 2601 + ... + 2902.

It is an arithmetic number, because the mean of its divisors is an integer number (209152).

2830953 is an apocalyptic number.

It is an amenable number.

830953 is a deficient number, since it is larger than the sum of its proper divisors (5655).

830953 is a wasteful number, since it uses less digits than its factorization.

830953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5654.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 830953 is about 911.5662345655. The cubic root of 830953 is about 94.0139182650.

The spelling of 830953 in words is "eight hundred thirty thousand, nine hundred fifty-three".

Divisors: 1 151 5503 830953