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387276768 = 2533974621
BaseRepresentation
bin10111000101010…
…101111111100000
3222222201200212000
4113011111333200
51243120324033
6102232404000
712411540534
oct2705257740
9888650760
10387276768
1118967584a
12a9846600
1362308368
1439611bc4
1523eeda13
hex17155fe0

387276768 has 96 divisors (see below), whose sum is σ = 1141449120. Its totient is φ = 127733760.

The previous prime is 387276761. The next prime is 387276803. The reversal of 387276768 is 867672783.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387276761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81498 + ... + 86118.

It is an arithmetic number, because the mean of its divisors is an integer number (11890095).

Almost surely, 2387276768 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 387276768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570724560).

387276768 is an abundant number, since it is smaller than the sum of its proper divisors (754172352).

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

387276768 is a wasteful number, since it uses less digits than its factorization.

387276768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737 (or 4723 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 387276768 is about 19679.3487697129. The cubic root of 387276768 is about 728.9098433782.

The spelling of 387276768 in words is "three hundred eighty-seven million, two hundred seventy-six thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 97 108 144 194 216 288 291 388 432 582 776 864 873 1164 1552 1746 2328 2619 3104 3492 4621 4656 5238 6984 9242 9312 10476 13863 13968 18484 20952 27726 27936 36968 41589 41904 55452 73936 83178 83808 110904 124767 147872 166356 221808 249534 332712 443616 448237 499068 665424 896474 998136 1330848 1344711 1792948 1996272 2689422 3585896 3992544 4034133 5378844 7171792 8068266 10757688 12102399 14343584 16136532 21515376 24204798 32273064 43030752 48409596 64546128 96819192 129092256 193638384 387276768