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30766076145 = 3257317117251
BaseRepresentation
bin11100101001110011…
…010001000011110001
32221102010210121021200
4130221303101003301
51001002103414040
622044515441413
72136261222000
oct345163210361
987363717250
1030766076145
1112058714412
125b675b6269
132b93ccacac
1416bc0a2c37
15c00eee630
hex729cd10f1

30766076145 has 96 divisors (see below), whose sum is σ = 65848723200. Its totient is φ = 13237056000.

The previous prime is 30766076129. The next prime is 30766076177. The reversal of 30766076145 is 54167066703.

30766076145 is a `hidden beast` number, since 30 + 7 + 6 + 607 + 6 + 1 + 4 + 5 = 666.

It is not a de Polignac number, because 30766076145 - 24 = 30766076129 is a prime.

It is a super-2 number, since 2×307660761452 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30766076145.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 203770 + ... + 321020.

It is an arithmetic number, because the mean of its divisors is an integer number (685924200).

Almost surely, 230766076145 is an apocalyptic number.

30766076145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30766076145 is an abundant number, since it is smaller than the sum of its proper divisors (35082647055).

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

30766076145 is a wasteful number, since it uses less digits than its factorization.

30766076145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117300 (or 117283 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 30766076145 in words is "thirty billion, seven hundred sixty-six million, seventy-six thousand, one hundred forty-five".

Divisors: 1 3 5 7 9 15 17 21 35 45 49 51 63 85 105 119 147 153 245 255 315 343 357 441 595 735 765 833 1029 1071 1715 1785 2205 2499 3087 4165 5145 5355 5831 7497 12495 15435 17493 29155 37485 52479 87465 117251 262395 351753 586255 820757 1055259 1758765 1993267 2462271 4103785 5276295 5745299 5979801 7386813 9966335 12311355 13952869 17235897 17939403 28726495 29899005 36934065 40217093 41858607 51707691 69764345 86179485 89697015 97670083 120651279 125575821 201085465 209293035 258538455 293010249 361953837 488350415 603256395 627879105 683690581 879030747 1465051245 1809769185 2051071743 3418452905 4395153735 6153215229 10255358715 30766076145