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30319342647 = 31123103938447
BaseRepresentation
bin11100001111001011…
…000111010000110111
32220021000012012010120
4130033023013100313
5444043222431042
621532320423023
72122225105656
oct341713072067
986230165116
1030319342647
1111949529980
125a61a77a73
132b225a6049
141678a1519d
15bc6ba8dec
hex70f2c7437

30319342647 has 32 divisors (see below), whose sum is σ = 46063779840. Its totient is φ = 17559057120.

The previous prime is 30319342643. The next prime is 30319342667. The reversal of 30319342647 is 74624391303.

It is a happy number.

It is not a de Polignac number, because 30319342647 - 22 = 30319342643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30319342599 and 30319342608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30319342643) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 769378 + ... + 807824.

It is an arithmetic number, because the mean of its divisors is an integer number (1439493120).

Almost surely, 230319342647 is an apocalyptic number.

30319342647 is a deficient number, since it is larger than the sum of its proper divisors (15744437193).

30319342647 is a wasteful number, since it uses less digits than its factorization.

30319342647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39523.

The product of its (nonzero) digits is 326592, while the sum is 42.

The spelling of 30319342647 in words is "thirty billion, three hundred nineteen million, three hundred forty-two thousand, six hundred forty-seven".

Divisors: 1 3 11 23 33 69 253 759 1039 3117 11429 23897 34287 38447 71691 115341 262867 422917 788601 884281 1268751 2652843 9727091 29181273 39946433 119839299 439410763 918767959 1318232289 2756303877 10106447549 30319342647