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378649070 = 25265714251
BaseRepresentation
bin10110100100011…
…011100111101110
3222101111100212122
4112210123213232
51233413232240
6101323432542
712245315102
oct2644334756
9871440778
10378649070
11184812718
12a6985752
13605a7307
1438407902
15233974b5
hex1691b9ee

378649070 has 16 divisors (see below), whose sum is σ = 681872688. Its totient is φ = 151392000.

The previous prime is 378649067. The next prime is 378649091. The reversal of 378649070 is 70946873.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19445 + ... + 33695.

It is an arithmetic number, because the mean of its divisors is an integer number (42617043).

Almost surely, 2378649070 is an apocalyptic number.

378649070 is a deficient number, since it is larger than the sum of its proper divisors (303223618).

378649070 is a wasteful number, since it uses less digits than its factorization.

378649070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16915.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 378649070 is about 19458.9072149491. The cubic root of 378649070 is about 723.4562920837.

The spelling of 378649070 in words is "three hundred seventy-eight million, six hundred forty-nine thousand, seventy".

Divisors: 1 2 5 10 2657 5314 13285 14251 26570 28502 71255 142510 37864907 75729814 189324535 378649070