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378387072 = 2733715641
BaseRepresentation
bin10110100011011…
…011101010000000
3222101000001111000
4112203123222000
51233331341242
6101314052000
712243144210
oct2643335200
9871001430
10378387072
11184653898
12a687a000
1360514c9b
143837a240
1523344a4c
hex168dba80

378387072 has 128 divisors (see below), whose sum is σ = 1276387200. Its totient is φ = 108103680.

The previous prime is 378387067. The next prime is 378387103. The reversal of 378387072 is 270783873.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16372 + ... + 32012.

It is an arithmetic number, because the mean of its divisors is an integer number (9971775).

Almost surely, 2378387072 is an apocalyptic number.

378387072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378387072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638193600).

378387072 is an abundant number, since it is smaller than the sum of its proper divisors (898000128).

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

378387072 is a wasteful number, since it uses less digits than its factorization.

378387072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15671 (or 15653 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 378387072 is about 19452.1739659093. The cubic root of 378387072 is about 723.2893936277.

It can be divided in two parts, 378 and 387072, that multiplied together give a square (146313216 = 120962).

The spelling of 378387072 in words is "three hundred seventy-eight million, three hundred eighty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 84 96 108 112 126 128 144 168 189 192 216 224 252 288 336 378 384 432 448 504 576 672 756 864 896 1008 1152 1344 1512 1728 2016 2688 3024 3456 4032 6048 8064 12096 15641 24192 31282 46923 62564 93846 109487 125128 140769 187692 218974 250256 281538 328461 375384 422307 437948 500512 563076 656922 750768 844614 875896 985383 1001024 1126152 1313844 1501536 1689228 1751792 1970766 2002048 2252304 2627688 2956149 3003072 3378456 3503584 3941532 4504608 5255376 5912298 6006144 6756912 7007168 7883064 9009216 10510752 11824596 13513824 14014336 15766128 18018432 21021504 23649192 27027648 31532256 42043008 47298384 54055296 63064512 94596768 126129024 189193536 378387072