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30461385 = 352030759
BaseRepresentation
bin111010000110…
…0110111001001
32010022121011110
41310030313021
530244231020
63004520533
7516626463
oct164146711
963277143
1030461385
11162160a9
12a250149
136406cb6
14408d133
152a1a8e0
hex1d0cdc9

30461385 has 8 divisors (see below), whose sum is σ = 48738240. Its totient is φ = 16246064.

The previous prime is 30461369. The next prime is 30461393. The reversal of 30461385 is 58316403.

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

It is a cyclic number.

It is not a de Polignac number, because 30461385 - 24 = 30461369 is a prime.

It is a super-2 number, since 2×304613852 = 1855791952236450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015365 + ... + 1015394.

It is an arithmetic number, because the mean of its divisors is an integer number (6092280).

Almost surely, 230461385 is an apocalyptic number.

It is an amenable number.

30461385 is a deficient number, since it is larger than the sum of its proper divisors (18276855).

30461385 is a wasteful number, since it uses less digits than its factorization.

30461385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030767.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 30461385 is about 5519.1833635059. The cubic root of 30461385 is about 312.3080762864.

Adding to 30461385 its reverse (58316403), we get a palindrome (88777788).

The spelling of 30461385 in words is "thirty million, four hundred sixty-one thousand, three hundred eighty-five".

Divisors: 1 3 5 15 2030759 6092277 10153795 30461385