Search a number
-
+
29880357 = 313766163
BaseRepresentation
bin111000111111…
…1000000100101
32002020002010220
41301333000211
530122132412
62544234553
7511656513
oct161770045
962202126
1029880357
1115959611
12a00ba59
1362626b0
143d7b4b3
15295368c
hex1c7f025

29880357 has 8 divisors (see below), whose sum is σ = 42905184. Its totient is φ = 18387888.

The previous prime is 29880341. The next prime is 29880359. The reversal of 29880357 is 75308892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29880357 - 24 = 29880341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29880359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383043 + ... + 383120.

It is an arithmetic number, because the mean of its divisors is an integer number (5363148).

Almost surely, 229880357 is an apocalyptic number.

It is an amenable number.

29880357 is a deficient number, since it is larger than the sum of its proper divisors (13024827).

29880357 is a wasteful number, since it uses less digits than its factorization.

29880357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766179.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 29880357 is about 5466.2928022564. The cubic root of 29880357 is about 310.3096351286.

Subtracting from 29880357 its sum of digits (42), we obtain a triangular number (29880315 = T7730).

The spelling of 29880357 in words is "twenty-nine million, eight hundred eighty thousand, three hundred fifty-seven".

Divisors: 1 3 13 39 766163 2298489 9960119 29880357