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30706170057 = 3241611578689
BaseRepresentation
bin11100100110001110…
…101111100011001001
32221020222002001120200
4130212032233203021
51000341234420212
622034535442413
72134633065453
oct344616574311
987228061520
1030706170057
1112027918052
125b4b526409
132b847849c4
1416b414b2d3
15beab196dc
hex7263af8c9

30706170057 has 48 divisors (see below), whose sum is σ = 46479473040. Its totient is φ = 19516723200.

The previous prime is 30706170043. The next prime is 30706170067. The reversal of 30706170057 is 75007160703.

30706170057 is a `hidden beast` number, since 30 + 7 + 0 + 617 + 0 + 0 + 5 + 7 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 6043352121 + 24662817936 = 77739^2 + 157044^2 .

It is not a de Polignac number, because 30706170057 - 24 = 30706170041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30706170037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3529569 + ... + 3538257.

It is an arithmetic number, because the mean of its divisors is an integer number (968322355).

Almost surely, 230706170057 is an apocalyptic number.

It is an amenable number.

30706170057 is a deficient number, since it is larger than the sum of its proper divisors (15773302983).

30706170057 is a wasteful number, since it uses less digits than its factorization.

30706170057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8954 (or 8951 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The spelling of 30706170057 in words is "thirty billion, seven hundred six million, one hundred seventy thousand, fifty-seven".

Divisors: 1 3 9 41 61 123 157 183 369 471 549 1413 2501 6437 7503 8689 9577 19311 22509 26067 28731 57933 78201 86193 356249 392657 530029 1068747 1177971 1364173 1590087 3206241 3533913 4092519 4770261 12277557 21731189 55931093 65193567 83214553 167793279 195580701 249643659 503379837 748930977 3411796673 10235390019 30706170057