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378149165000 = 2354978832
BaseRepresentation
bin1011000000010110111…
…00100101011111001000
31100011001212100221102122
411200023130211133020
522143422141240000
6445415212550412
736214613603465
oct5401334453710
91304055327378
10378149165000
11136410388682
1261355482408
1329875685189
141443417066c
159c83432085
hex580b7257c8

378149165000 has 120 divisors (see below), whose sum is σ = 896152444110. Its totient is φ = 149530752000.

The previous prime is 378149164973. The next prime is 378149165003. The reversal of 378149165000 is 561941873.

It can be written as a sum of positive squares in 5 ways, for example, as 2622873796 + 375526291204 = 51214^2 + 612802^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378149165003) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 428254559 + ... + 428255441.

Almost surely, 2378149165000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378149165000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448076222055).

378149165000 is an abundant number, since it is smaller than the sum of its proper divisors (518003279110).

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

378149165000 is an frugal number, since it uses more digits than its factorization.

378149165000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 378149165000 in words is "three hundred seventy-eight billion, one hundred forty-nine million, one hundred sixty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 97 100 125 194 200 250 388 485 500 625 776 883 970 1000 1250 1766 1940 2425 2500 3532 3880 4415 4850 5000 7064 8830 9700 12125 17660 19400 22075 24250 35320 44150 48500 60625 85651 88300 97000 110375 121250 171302 176600 220750 242500 342604 428255 441500 485000 551875 685208 779689 856510 883000 1103750 1559378 1713020 2141275 2207500 3118756 3426040 3898445 4282550 4415000 6237512 7796890 8565100 10706375 15593780 17130200 19492225 21412750 31187560 38984450 42825500 53531875 75629833 77968900 85651000 97461125 107063750 151259666 155937800 194922250 214127500 302519332 378149165 389844500 428255000 487305625 605038664 756298330 779689000 974611250 1512596660 1890745825 1949222500 3025193320 3781491650 3898445000 7562983300 9453729125 15125966600 18907458250 37814916500 47268645625 75629833000 94537291250 189074582500 378149165000