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30408710785 = 56790772271
BaseRepresentation
bin11100010100100000…
…000001101010000001
32220111020100120011121
4130110200001222001
5444234112221120
621545232112241
72124361530325
oct342440015201
986436316147
1030408710785
1111994a19542
125a87995681
132b37c664bb
141686839985
15bce95d5aa
hex714801a81

30408710785 has 8 divisors (see below), whose sum is σ = 37035086976. Its totient is φ = 23963879280.

The previous prime is 30408710779. The next prime is 30408710837. The reversal of 30408710785 is 58701780403.

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

It is a de Polignac number, because none of the positive numbers 2k-30408710785 is a prime.

It is a super-3 number, since 3×304087107853 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45385801 + ... + 45386470.

It is an arithmetic number, because the mean of its divisors is an integer number (4629385872).

Almost surely, 230408710785 is an apocalyptic number.

It is an amenable number.

30408710785 is a deficient number, since it is larger than the sum of its proper divisors (6626376191).

30408710785 is an equidigital number, since it uses as much as digits as its factorization.

30408710785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90772343.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 30408710785 in words is "thirty billion, four hundred eight million, seven hundred ten thousand, seven hundred eighty-five".

Divisors: 1 5 67 335 90772271 453861355 6081742157 30408710785