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378199960 = 23571133169
BaseRepresentation
bin10110100010101…
…101111110011000
3222100122112210221
4112202231332120
51233304344320
6101310045424
712241434535
oct2642557630
9870575727
10378199960
11184536256
12a67a9874
136047aa78
143832bd8c
15233093aa
hex168adf98

378199960 has 32 divisors (see below), whose sum is σ = 862941600. Its totient is φ = 149148160.

The previous prime is 378199873. The next prime is 378199963. The reversal of 378199960 is 69991873.

It is a junction number, because it is equal to n+sod(n) for n = 378199898 and 378199907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378199963) 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, 63745 + ... + 69424.

It is an arithmetic number, because the mean of its divisors is an integer number (26966925).

Almost surely, 2378199960 is an apocalyptic number.

It is an amenable number.

378199960 is an abundant number, since it is smaller than the sum of its proper divisors (484741640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378199960 is a wasteful number, since it uses less digits than its factorization.

378199960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133251 (or 133247 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 378199960 is about 19447.3638316354. The cubic root of 378199960 is about 723.1701520283.

The spelling of 378199960 in words is "three hundred seventy-eight million, one hundred ninety-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 133169 266338 532676 665845 1065352 1331690 2663380 5326760 9454999 18909998 37819996 47274995 75639992 94549990 189099980 378199960