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308426994 = 23311295059
BaseRepresentation
bin10010011000100…
…011100011110010
3210111100201022000
4102120203203302
51112424130434
650334354430
710433405031
oct2230434362
9714321260
10308426994
1114910a847
128735ba16
134bb8b6a5
142cd68718
151c125b99
hex126238f2

308426994 has 32 divisors (see below), whose sum is σ = 686136000. Its totient is φ = 102697632.

The previous prime is 308426959. The next prime is 308426999. The reversal of 308426994 is 499624803.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (308426999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58437 + ... + 63495.

It is an arithmetic number, because the mean of its divisors is an integer number (21441750).

Almost surely, 2308426994 is an apocalyptic number.

308426994 is an abundant number, since it is smaller than the sum of its proper divisors (377709006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308426994 is a wasteful number, since it uses less digits than its factorization.

308426994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6199 (or 6193 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 308426994 is about 17562.0896820395. The cubic root of 308426994 is about 675.6432781163.

The spelling of 308426994 in words is "three hundred eight million, four hundred twenty-six thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 1129 2258 3387 5059 6774 10118 10161 15177 20322 30354 30483 45531 60966 91062 136593 273186 5711611 11423222 17134833 34269666 51404499 102808998 154213497 308426994