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378680239 = 7103352369
BaseRepresentation
bin10110100100100…
…011001110101111
3222101112221122001
4112210203032233
51233420231424
6101324233131
712245505010
oct2644431657
9871487561
10378680239
11184834083
12a699b7a7
13605b8562
1438415007
15233a1844
hex169233af

378680239 has 8 divisors (see below), whose sum is σ = 433204640. Its totient is φ = 324262656.

The previous prime is 378680213. The next prime is 378680251. The reversal of 378680239 is 932086873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378680239 - 25 = 378680207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378680299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18954 + ... + 33415.

It is an arithmetic number, because the mean of its divisors is an integer number (54150580).

Almost surely, 2378680239 is an apocalyptic number.

378680239 is a deficient number, since it is larger than the sum of its proper divisors (54524401).

378680239 is a wasteful number, since it uses less digits than its factorization.

378680239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53409.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 378680239 is about 19459.7080913358. The cubic root of 378680239 is about 723.4761422935.

The spelling of 378680239 in words is "three hundred seventy-eight million, six hundred eighty thousand, two hundred thirty-nine".

Divisors: 1 7 1033 7231 52369 366583 54097177 378680239