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30377 = 37821
BaseRepresentation
bin111011010101001
31112200002
413122221
51433002
6352345
7154364
oct73251
945602
1030377
1120906
12156b5
1310a99
14b0db
159002
hex76a9

30377 has 4 divisors (see below), whose sum is σ = 31236. Its totient is φ = 29520.

The previous prime is 30367. The next prime is 30389. The reversal of 30377 is 77303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77303 = 233361.

It can be written as a sum of positive squares in 2 ways, for example, as 18496 + 11881 = 136^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 30377 - 26 = 30313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30307) 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, 374 + ... + 447.

It is an arithmetic number, because the mean of its divisors is an integer number (7809).

230377 is an apocalyptic number.

30377 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

30377 is a deficient number, since it is larger than the sum of its proper divisors (859).

30377 is an equidigital number, since it uses as much as digits as its factorization.

30377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 441, while the sum is 20.

The square root of 30377 is about 174.2899882380. The cubic root of 30377 is about 31.2019421320.

The spelling of 30377 in words is "thirty thousand, three hundred seventy-seven".

Divisors: 1 37 821 30377