Search a number
-
+
30067434 = 2321670413
BaseRepresentation
bin111001010110…
…0101011101010
32002120120202200
41302230223222
530144124214
62552241030
7513366105
oct162545352
962516680
1030067434
1115a77121
12a0a0176
1362c98a7
143dc973c
15298dd09
hex1cacaea

30067434 has 12 divisors (see below), whose sum is σ = 65146146. Its totient is φ = 10022472.

The previous prime is 30067361. The next prime is 30067439. The reversal of 30067434 is 43476003.

It can be written as a sum of positive squares in only one way, i.e., 29975625 + 91809 = 5475^2 + 303^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30067398 and 30067407.

It is not an unprimeable number, because it can be changed into a prime (30067439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 835189 + ... + 835224.

Almost surely, 230067434 is an apocalyptic number.

30067434 is an abundant number, since it is smaller than the sum of its proper divisors (35078712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30067434 is a wasteful number, since it uses less digits than its factorization.

30067434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670421 (or 1670418 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 30067434 is about 5483.3779734758. The cubic root of 30067434 is about 310.9558909469.

It can be divided in two parts, 3006 and 7434, that added together give a triangular number (10440 = T144).

The spelling of 30067434 in words is "thirty million, sixty-seven thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 18 1670413 3340826 5011239 10022478 15033717 30067434