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1000000378 = 213223912379
BaseRepresentation
bin111011100110101…
…100101101111010
32120200200021122001
4323212230231322
54022000003003
6243121251214
733531601666
oct7346545572
92520607561
101000000378
114735240a3
1223aa93b0a
1312c23a400
1496b4b8a6
155cbd161d
hex3b9acb7a

1000000378 has 24 divisors (see below), whose sum is σ = 1631188800. Its totient is φ = 459570384.

The previous prime is 1000000363. The next prime is 1000000403. The reversal of 1000000378 is 8730000001.

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 11 ways as a sum of consecutive naturals, for example, 74593 + ... + 86971.

It is an arithmetic number, because the mean of its divisors is an integer number (67966200).

Almost surely, 21000000378 is an apocalyptic number.

1000000378 is a deficient number, since it is larger than the sum of its proper divisors (631188422).

1000000378 is a wasteful number, since it uses less digits than its factorization.

1000000378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12646 (or 12633 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1000000378 is about 31622.7825783880. The cubic root of 1000000378 is about 1000.0001260000. Note that the first 3 decimals are identical.

Adding to 1000000378 its reverse (8730000001), we get a palindrome (9730000379).

The spelling of 1000000378 in words is "one billion, three hundred seventy-eight", and thus it is an aban number.

Divisors: 1 2 13 26 169 239 338 478 3107 6214 12379 24758 40391 80782 160927 321854 2092051 2958581 4184102 5917162 38461553 76923106 500000189 1000000378