Search a number
-
+
29957089 is a prime number
BaseRepresentation
bin111001001000…
…1101111100001
32002100222101211
41302101233201
530132111324
62550030121
7512426311
oct162215741
962328354
1029957089
1115a01228
12a048341
13628b5b6
143d9b441
15296b294
hex1c91be1

29957089 has 2 divisors, whose sum is σ = 29957090. Its totient is φ = 29957088.

The previous prime is 29957071. The next prime is 29957099. The reversal of 29957089 is 98075992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28174864 + 1782225 = 5308^2 + 1335^2 .

It is a cyclic number.

It is not a de Polignac number, because 29957089 - 211 = 29955041 is a prime.

It is not a weakly prime, because it can be changed into another prime (29957069) 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 as a sum of consecutive naturals, namely, 14978544 + 14978545.

It is an arithmetic number, because the mean of its divisors is an integer number (14978545).

Almost surely, 229957089 is an apocalyptic number.

It is an amenable number.

29957089 is a deficient number, since it is larger than the sum of its proper divisors (1).

29957089 is an equidigital number, since it uses as much as digits as its factorization.

29957089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 29957089 is about 5473.3069528394. The cubic root of 29957089 is about 310.5750305098.

The spelling of 29957089 in words is "twenty-nine million, nine hundred fifty-seven thousand, eighty-nine".