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381052773 = 321773109313
BaseRepresentation
bin10110101101100…
…110011101100101
3222120000111010200
4112231212131211
51240022142043
6101451141113
712304616013
oct2655463545
9876014120
10381052773
11186104652
12a7744799
1360c3941a
14388718b3
15236be7d3
hex16b66765

381052773 has 48 divisors (see below), whose sum is σ = 598094640. Its totient is φ = 232906752.

The previous prime is 381052709. The next prime is 381052783. The reversal of 381052773 is 377250183.

381052773 is a `hidden beast` number, since 381 + 0 + 5 + 277 + 3 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1855044 + 379197729 = 1362^2 + 19473^2 .

It is not a de Polignac number, because 381052773 - 26 = 381052709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381052783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1217265 + ... + 1217577.

It is an arithmetic number, because the mean of its divisors is an integer number (12460305).

Almost surely, 2381052773 is an apocalyptic number.

It is an amenable number.

381052773 is a deficient number, since it is larger than the sum of its proper divisors (217041867).

381052773 is a wasteful number, since it uses less digits than its factorization.

381052773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 381052773 is about 19520.5730704813. The cubic root of 381052773 is about 724.9839222752.

The spelling of 381052773 in words is "three hundred eighty-one million, fifty-two thousand, seven hundred seventy-three".

Divisors: 1 3 9 17 51 73 109 153 219 313 327 657 939 981 1241 1853 2817 3723 5321 5559 7957 11169 15963 16677 22849 23871 34117 47889 68547 71613 102351 135269 205641 307053 388433 405807 579989 1165299 1217421 1739967 2490541 3495897 5219901 7471623 22414869 42339197 127017591 381052773