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30668399732 = 22237119723833
BaseRepresentation
bin11100100011111110…
…101010010001110100
32221011100000010102202
4130203332222101310
51000302102242412
622031110124032
72133664045055
oct344376522164
987140003382
1030668399732
111200856a703
125b3a950618
132b799bbcb9
1416ad11872c
15be76583c2
hex723faa474

30668399732 has 48 divisors (see below), whose sum is σ = 57082620672. Its totient is φ = 14386901760.

The previous prime is 30668399717. The next prime is 30668399771. The reversal of 30668399732 is 23799386603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1274888 + ... + 1298720.

It is an arithmetic number, because the mean of its divisors is an integer number (1189221264).

Almost surely, 230668399732 is an apocalyptic number.

It is an amenable number.

30668399732 is a deficient number, since it is larger than the sum of its proper divisors (26414220940).

30668399732 is a wasteful number, since it uses less digits than its factorization.

30668399732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24128 (or 24126 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 56.

The spelling of 30668399732 in words is "thirty billion, six hundred sixty-eight million, three hundred ninety-nine thousand, seven hundred thirty-two".

Divisors: 1 2 4 23 46 71 92 142 197 284 394 788 1633 3266 4531 6532 9062 13987 18124 23833 27974 47666 55948 95332 321701 548159 643402 1096318 1286804 1692143 2192636 3384286 4695101 6768572 9390202 18780404 38919289 77838578 107987323 155677156 215974646 333352171 431949292 666704342 1333408684 7667099933 15334199866 30668399732