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30277 = 1317137
BaseRepresentation
bin111011001000101
31112112101
413121011
51432102
6352101
7154162
oct73105
945471
1030277
1120825
1215631
1310a20
14b069
158e87
hex7645

30277 has 8 divisors (see below), whose sum is σ = 34776. Its totient is φ = 26112.

The previous prime is 30271. The next prime is 30293. The reversal of 30277 is 77203.

It is a Cunningham number, because it is equal to 1742+1.

It can be written as a sum of positive squares in 4 ways, for example, as 4356 + 25921 = 66^2 + 161^2 .

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

It is not a de Polignac number, because 30277 - 23 = 30269 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 (30271) 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, 153 + ... + 289.

It is an arithmetic number, because the mean of its divisors is an integer number (4347).

230277 is an apocalyptic number.

It is an amenable number.

30277 is a deficient number, since it is larger than the sum of its proper divisors (4499).

30277 is a wasteful number, since it uses less digits than its factorization.

30277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167.

The product of its (nonzero) digits is 294, while the sum is 19.

The square root of 30277 is about 174.0028735395. The cubic root of 30277 is about 31.1676659324.

The spelling of 30277 in words is "thirty thousand, two hundred seventy-seven".

Divisors: 1 13 17 137 221 1781 2329 30277