Search a number
-
+
29730030031 = 132286925387
BaseRepresentation
bin11011101100000011…
…000100000111001111
32211201221022000012101
4123230003010013033
5441341341430111
621354025415531
72101511041252
oct335403040717
984657260171
1029730030031
1111676910659
12591863a5a7
132a5a47cb60
141620651099
15b9009cbc1
hex6ec0c41cf

29730030031 has 4 divisors (see below), whose sum is σ = 32016955432. Its totient is φ = 27443104632.

The previous prime is 29730030017. The next prime is 29730030041. The reversal of 29730030031 is 13003003792.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29730030031 - 211 = 29730027983 is a prime.

It is a super-2 number, since 2×297300300312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29730030041) 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 3 ways as a sum of consecutive naturals, for example, 1143462681 + ... + 1143462706.

It is an arithmetic number, because the mean of its divisors is an integer number (8004238858).

Almost surely, 229730030031 is an apocalyptic number.

29730030031 is a deficient number, since it is larger than the sum of its proper divisors (2286925401).

29730030031 is a wasteful number, since it uses less digits than its factorization.

29730030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286925400.

The product of its (nonzero) digits is 3402, while the sum is 28.

The spelling of 29730030031 in words is "twenty-nine billion, seven hundred thirty million, thirty thousand, thirty-one".

Divisors: 1 13 2286925387 29730030031