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387122976 = 2534233641
BaseRepresentation
bin10111000100110…
…000011100100000
3222222102212220000
4113010300130200
51243100413401
6102225220000
712410330262
oct2704603440
9888385800
10387122976
11189580249
12a9791600
1362283366
14395b1b32
1523ebd186
hex17130720

387122976 has 120 divisors (see below), whose sum is σ = 1145188044. Its totient is φ = 128286720.

The previous prime is 387122969. The next prime is 387122993. The reversal of 387122976 is 679221783.

It can be written as a sum of positive squares in 2 ways, for example, as 384944400 + 2178576 = 19620^2 + 1476^2 .

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 19 ways as a sum of consecutive naturals, for example, 603616 + ... + 604256.

Almost surely, 2387122976 is an apocalyptic number.

387122976 is a gapful number since it is divisible by the number (36) 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 387122976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572594022).

387122976 is an abundant number, since it is smaller than the sum of its proper divisors (758065068).

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

387122976 is a wasteful number, since it uses less digits than its factorization.

387122976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 879 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 387122976 is about 19675.4409353387. The cubic root of 387122976 is about 728.8133444796.

The spelling of 387122976 in words is "three hundred eighty-seven million, one hundred twenty-two thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 233 288 324 432 466 641 648 699 864 932 1282 1296 1398 1864 1923 2097 2564 2592 2796 3728 3846 4194 5128 5592 5769 6291 7456 7692 8388 10256 11184 11538 12582 15384 16776 17307 18873 20512 22368 23076 25164 30768 33552 34614 37746 46152 50328 51921 61536 67104 69228 75492 92304 100656 103842 138456 149353 150984 184608 201312 207684 276912 298706 301968 415368 448059 553824 597412 603936 830736 896118 1194824 1344177 1661472 1792236 2389648 2688354 3584472 4032531 4779296 5376708 7168944 8065062 10753416 12097593 14337888 16130124 21506832 24195186 32260248 43013664 48390372 64520496 96780744 129040992 193561488 387122976