Search a number
-
+
30769136 = 245233677
BaseRepresentation
bin111010101011…
…1111111110000
32010220020022122
41311113333300
530334103021
63015253412
7522350636
oct165277760
963806278
1030769136
1116406342
12a37a268
1364b40b8
14412d356
152a7bbab
hex1d57ff0

30769136 has 20 divisors (see below), whose sum is σ = 59745432. Its totient is φ = 15350976.

The previous prime is 30769129. The next prime is 30769139. The reversal of 30769136 is 63196703.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30769096 and 30769105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30769139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6530 + ... + 10206.

Almost surely, 230769136 is an apocalyptic number.

It is an amenable number.

30769136 is a deficient number, since it is larger than the sum of its proper divisors (28976296).

30769136 is a wasteful number, since it uses less digits than its factorization.

30769136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208 (or 4202 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 30769136 is about 5546.9934198627. The cubic root of 30769136 is about 313.3563023251.

The spelling of 30769136 in words is "thirty million, seven hundred sixty-nine thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 523 1046 2092 3677 4184 7354 8368 14708 29416 58832 1923071 3846142 7692284 15384568 30769136