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1308345238 = 21516836343
BaseRepresentation
bin100110111111011…
…1100001110010110
310101011212211021001
41031332330032112
510134414021423
6333454213514
744264515414
oct11576741626
93334784231
101308345238
11611588162
123061b429a
1317b09a5a5
14c5a942b4
1579cdccad
hex4dfbc396

1308345238 has 16 divisors (see below), whose sum is σ = 1978718976. Its totient is φ = 648786600.

The previous prime is 1308345229. The next prime is 1308345289. The reversal of 1308345238 is 8325438031.

It is a junction number, because it is equal to n+sod(n) for n = 1308345197 and 1308345206.

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 7 ways as a sum of consecutive naturals, for example, 203095 + ... + 209437.

It is an arithmetic number, because the mean of its divisors is an integer number (123669936).

Almost surely, 21308345238 is an apocalyptic number.

1308345238 is a deficient number, since it is larger than the sum of its proper divisors (670373738).

1308345238 is a wasteful number, since it uses less digits than its factorization.

1308345238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7179.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1308345238 is about 36171.0552514023. The cubic root of 1308345238 is about 1093.7232711052.

The spelling of 1308345238 in words is "one billion, three hundred eight million, three hundred forty-five thousand, two hundred thirty-eight".

Divisors: 1 2 151 302 683 1366 6343 12686 103133 206266 957793 1915586 4332269 8664538 654172619 1308345238