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30772159 = 1117792083
BaseRepresentation
bin111010101100…
…0101110111111
32010220101110121
41311120232333
530334202114
63015315411
7522362515
oct165305677
963811417
1030772159
1116408640
12a37bb67
1364b55a2
1441304b5
152a7ca24
hex1d58bbf

30772159 has 16 divisors (see below), whose sum is σ = 36011520. Its totient is φ = 25983360.

The previous prime is 30772151. The next prime is 30772163. The reversal of 30772159 is 95127703.

It is a cyclic number.

It is not a de Polignac number, because 30772159 - 23 = 30772151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30772151) 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 15 ways as a sum of consecutive naturals, for example, 13732 + ... + 15814.

It is an arithmetic number, because the mean of its divisors is an integer number (2250720).

Almost surely, 230772159 is an apocalyptic number.

30772159 is a deficient number, since it is larger than the sum of its proper divisors (5239361).

30772159 is a wasteful number, since it uses less digits than its factorization.

30772159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 30772159 is about 5547.2659031274. The cubic root of 30772159 is about 313.3665641784.

The spelling of 30772159 in words is "thirty million, seven hundred seventy-two thousand, one hundred fifty-nine".

Divisors: 1 11 17 79 187 869 1343 2083 14773 22913 35411 164557 389521 1810127 2797469 30772159