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30389502946 = 2111381341043
BaseRepresentation
bin11100010011010110…
…110000001111100010
32220102220012200222011
4130103112300033202
5444214203043241
621543304303134
72124036340645
oct342326601742
986386180864
1030389502946
111198509a3a0
125a81471aaa
132b33c9c80a
141684079a5c
15bcce17281
hex7135b03e2

30389502946 has 8 divisors (see below), whose sum is σ = 49728277584. Its totient is φ = 13813410420.

The previous prime is 30389502931. The next prime is 30389502947. The reversal of 30389502946 is 64920598303.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30389502946.

It is not an unprimeable number, because it can be changed into a prime (30389502947) 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, 690670500 + ... + 690670543.

It is an arithmetic number, because the mean of its divisors is an integer number (6216034698).

Almost surely, 230389502946 is an apocalyptic number.

30389502946 is a deficient number, since it is larger than the sum of its proper divisors (19338774638).

30389502946 is a wasteful number, since it uses less digits than its factorization.

30389502946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381341056.

The product of its (nonzero) digits is 1399680, while the sum is 49.

It can be divided in two parts, 30389 and 502946, that added together give a palindrome (533335).

The spelling of 30389502946 in words is "thirty billion, three hundred eighty-nine million, five hundred two thousand, nine hundred forty-six".

Divisors: 1 2 11 22 1381341043 2762682086 15194751473 30389502946