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30541 = 74363
BaseRepresentation
bin111011101001101
31112220011
413131031
51434131
6353221
7155020
oct73515
945804
1030541
1120a45
1215811
1310b94
14b1b7
1590b1
hex774d

30541 has 4 divisors (see below), whose sum is σ = 34912. Its totient is φ = 26172.

The previous prime is 30539. The next prime is 30553. The reversal of 30541 is 14503.

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 30541 - 21 = 30539 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

30541 is a lucky number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30241) 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, 2175 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (8728).

230541 is an apocalyptic number.

It is an amenable number.

30541 is a deficient number, since it is larger than the sum of its proper divisors (4371).

30541 is an equidigital number, since it uses as much as digits as its factorization.

30541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30541 is about 174.7598352025. The cubic root of 30541 is about 31.2579926223.

The spelling of 30541 in words is "thirty thousand, five hundred forty-one".

Divisors: 1 7 4363 30541