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305384463 = 3253640219
BaseRepresentation
bin10010001100111…
…100110000001111
3210021122010201200
4102030330300033
51111134300323
650145240543
710365503466
oct2214746017
9707563650
10305384463
1114742195a
1286333153
134b364887
142c7b59dd
151bc24443
hex1233cc0f

305384463 has 12 divisors (see below), whose sum is σ = 449434440. Its totient is φ = 199748016.

The previous prime is 305384461. The next prime is 305384489. The reversal of 305384463 is 364483503.

It is not a de Polignac number, because 305384463 - 21 = 305384461 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305384461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319633 + ... + 320586.

It is an arithmetic number, because the mean of its divisors is an integer number (37452870).

Almost surely, 2305384463 is an apocalyptic number.

305384463 is a deficient number, since it is larger than the sum of its proper divisors (144049977).

305384463 is a wasteful number, since it uses less digits than its factorization.

305384463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640278 (or 640275 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 305384463 is about 17475.2528737069. The cubic root of 305384463 is about 673.4142661325.

The spelling of 305384463 in words is "three hundred five million, three hundred eighty-four thousand, four hundred sixty-three".

Divisors: 1 3 9 53 159 477 640219 1920657 5761971 33931607 101794821 305384463