Search a number
-
+
30027677 = 61492257
BaseRepresentation
bin111001010001…
…0111110011101
32002111120020012
41302202332131
530141341202
62551333005
7513142151
oct162427635
962446205
1030027677
1115a4a269
12a081165
1362b4774
143db9061
152982152
hex1ca2f9d

30027677 has 4 divisors (see below), whose sum is σ = 30519996. Its totient is φ = 29535360.

The previous prime is 30027659. The next prime is 30027713. The reversal of 30027677 is 77672003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77672003 = 79339791.

It can be written as a sum of positive squares in 2 ways, for example, as 1522756 + 28504921 = 1234^2 + 5339^2 .

It is a cyclic number.

It is not a de Polignac number, because 30027677 - 28 = 30027421 is a prime.

It is a super-2 number, since 2×300276772 = 1803322772032658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30027607) 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, 246068 + ... + 246189.

It is an arithmetic number, because the mean of its divisors is an integer number (7629999).

Almost surely, 230027677 is an apocalyptic number.

It is an amenable number.

30027677 is a deficient number, since it is larger than the sum of its proper divisors (492319).

30027677 is an equidigital number, since it uses as much as digits as its factorization.

30027677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492318.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 30027677 is about 5479.7515454626. The cubic root of 30027677 is about 310.8187755299.

The spelling of 30027677 in words is "thirty million, twenty-seven thousand, six hundred seventy-seven".

Divisors: 1 61 492257 30027677