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378045020 = 2252379101103
BaseRepresentation
bin10110100010001…
…000001001011100
3222100100200021102
4112202020021130
51233234420040
6101302452232
712240221033
oct2642101134
9870320242
10378045020
1118443a901
12a6734078
13604253a2
14382cb71a
15232c8515
hex1688825c

378045020 has 96 divisors (see below), whose sum is σ = 855429120. Its totient is φ = 140025600.

The previous prime is 378045011. The next prime is 378045047. The reversal of 378045020 is 20540873.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3670289 + ... + 3670391.

It is an arithmetic number, because the mean of its divisors is an integer number (8910720).

Almost surely, 2378045020 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 378045020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427714560).

378045020 is an abundant number, since it is smaller than the sum of its proper divisors (477384100).

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

378045020 is a wasteful number, since it uses less digits than its factorization.

378045020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 378045020 is about 19443.3798502215. The cubic root of 378045020 is about 723.0713830349.

Adding to 378045020 its reverse (20540873), we get a palindrome (398585893).

It can be divided in two parts, 37804 and 5020, that added together give a palindrome (42824).

The spelling of 378045020 in words is "three hundred seventy-eight million, forty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 79 92 101 103 115 158 202 206 230 316 395 404 412 460 505 515 790 1010 1030 1580 1817 2020 2060 2323 2369 3634 4646 4738 7268 7979 8137 9085 9292 9476 10403 11615 11845 15958 16274 18170 20806 23230 23690 31916 32548 36340 39895 40685 41612 46460 47380 52015 79790 81370 104030 159580 162740 183517 187151 208060 239269 367034 374302 478538 734068 748604 821837 917585 935755 957076 1196345 1643674 1835170 1871510 2392690 3287348 3670340 3743020 4109185 4785380 8218370 16436740 18902251 37804502 75609004 94511255 189022510 378045020