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30668465331 = 3274211156297
BaseRepresentation
bin11100100011111110…
…111010010010110011
32221011100010110102100
4130203332322102303
51000302111342311
622031111351443
72133664440240
oct344376722263
987140113370
1030668465331
1112008604a19
125b3a982583
132b79a12b0a
1416ad1345c7
15be766ca56
hex723fba4b3

30668465331 has 24 divisors (see below), whose sum is σ = 50747606624. Its totient is φ = 17483195520.

The previous prime is 30668465291. The next prime is 30668465353. The reversal of 30668465331 is 13356486603.

30668465331 is a `hidden beast` number, since 30 + 6 + 6 + 84 + 6 + 533 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2k-30668465331 is a prime.

It is a super-2 number, since 2×306684653312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30668465131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551626 + ... + 604671.

Almost surely, 230668465331 is an apocalyptic number.

30668465331 is a deficient number, since it is larger than the sum of its proper divisors (20079141293).

30668465331 is a wasteful number, since it uses less digits than its factorization.

30668465331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156731 (or 1156728 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 30668465331 in words is "thirty billion, six hundred sixty-eight million, four hundred sixty-five thousand, three hundred thirty-one".

Divisors: 1 3 7 9 21 63 421 1263 2947 3789 8841 26523 1156297 3468891 8094079 10406673 24282237 72846711 486801037 1460403111 3407607259 4381209333 10222821777 30668465331