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378640130 = 25113442183
BaseRepresentation
bin10110100100011…
…001011100000010
3222101110220121112
4112210121130002
51233412441010
6101323323322
712245250041
oct2644313402
9871426545
10378640130
11184806a30
12a6980542
13605a321b
1438404558
1523394a05
hex16919702

378640130 has 16 divisors (see below), whose sum is σ = 743511744. Its totient is φ = 137687280.

The previous prime is 378640121. The next prime is 378640147. The reversal of 378640130 is 31046873.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720982 + ... + 1721201.

It is an arithmetic number, because the mean of its divisors is an integer number (46469484).

Almost surely, 2378640130 is an apocalyptic number.

378640130 is a deficient number, since it is larger than the sum of its proper divisors (364871614).

378640130 is a wasteful number, since it uses less digits than its factorization.

378640130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442201.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 378640130 is about 19458.6774987408. The cubic root of 378640130 is about 723.4505983771.

The spelling of 378640130 in words is "three hundred seventy-eight million, six hundred forty thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 3442183 6884366 17210915 34421830 37864013 75728026 189320065 378640130