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378007040 = 295149991
BaseRepresentation
bin10110100001111…
…110111000000000
3222100021202011202
4112201332320000
51233232211130
6101302000332
712240002225
oct2641767000
9870252152
10378007040
11184414314
12a67160a8
1360411008
14382bb94c
15232bc145
hex1687ee00

378007040 has 80 divisors (see below), whose sum is σ = 913334400. Its totient is φ = 150036480.

The previous prime is 378007039. The next prime is 378007043. The reversal of 378007040 is 40700873.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 378006994 and 378007012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378007043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 380945 + ... + 381935.

It is an arithmetic number, because the mean of its divisors is an integer number (11416680).

Almost surely, 2378007040 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 378007040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456667200).

378007040 is an abundant number, since it is smaller than the sum of its proper divisors (535327360).

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

378007040 is an equidigital number, since it uses as much as digits as its factorization.

378007040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 378007040 is about 19442.4031436446. The cubic root of 378007040 is about 723.0471679553.

The spelling of 378007040 in words is "three hundred seventy-eight million, seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 149 160 256 298 320 512 596 640 745 991 1192 1280 1490 1982 2384 2560 2980 3964 4768 4955 5960 7928 9536 9910 11920 15856 19072 19820 23840 31712 38144 39640 47680 63424 76288 79280 95360 126848 147659 158560 190720 253696 295318 317120 381440 507392 590636 634240 738295 1181272 1268480 1476590 2362544 2536960 2953180 4725088 5906360 9450176 11812720 18900352 23625440 37800704 47250880 75601408 94501760 189003520 378007040