Search a number
-
+
30804377 = 191621283
BaseRepresentation
bin111010110000…
…0100110011001
32010222000122212
41311200212121
530341220002
63020124505
7522555452
oct165404631
963860585
1030804377
111642a86a
12a396735
1364c7156
14413c129
152a87352
hex1d60999

30804377 has 4 divisors (see below), whose sum is σ = 32425680. Its totient is φ = 29183076.

The previous prime is 30804373. The next prime is 30804427. The reversal of 30804377 is 77340803.

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 30804377 - 22 = 30804373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30804373) 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, 810623 + ... + 810660.

It is an arithmetic number, because the mean of its divisors is an integer number (8106420).

Almost surely, 230804377 is an apocalyptic number.

It is an amenable number.

30804377 is a deficient number, since it is larger than the sum of its proper divisors (1621303).

30804377 is a wasteful number, since it uses less digits than its factorization.

30804377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621302.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 30804377 is about 5550.1690965231. The cubic root of 30804377 is about 313.4758894350.

The spelling of 30804377 in words is "thirty million, eight hundred four thousand, three hundred seventy-seven".

Divisors: 1 19 1621283 30804377