Search a number
-
+
30768735 = 352051249
BaseRepresentation
bin111010101011…
…1111001011111
32010220012202210
41311113321133
530334044420
63015251503
7522346524
oct165277137
963805683
1030768735
1116406008
12a379b93
1364b3b6a
14412d14b
152a7b9e0
hex1d57e5f

30768735 has 8 divisors (see below), whose sum is σ = 49230000. Its totient is φ = 16409984.

The previous prime is 30768713. The next prime is 30768743. The reversal of 30768735 is 53786703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30768735 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30768693 and 30768702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025610 + ... + 1025639.

It is an arithmetic number, because the mean of its divisors is an integer number (6153750).

Almost surely, 230768735 is an apocalyptic number.

30768735 is a deficient number, since it is larger than the sum of its proper divisors (18461265).

30768735 is a wasteful number, since it uses less digits than its factorization.

30768735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051257.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 30768735 is about 5546.9572740377. The cubic root of 30768735 is about 313.3549410430.

It can be divided in two parts, 3076 and 8735, that added together give a palindrome (11811).

The spelling of 30768735 in words is "thirty million, seven hundred sixty-eight thousand, seven hundred thirty-five".

Divisors: 1 3 5 15 2051249 6153747 10256245 30768735