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29892931 is a prime number
BaseRepresentation
bin111001000001…
…0000101000011
32002020201101121
41302002011003
530123033211
62544413111
7512041255
oct162020503
962221347
1029892931
1115968002
12a017197
136268333
143d81cd5
152957271
hex1c82143

29892931 has 2 divisors, whose sum is σ = 29892932. Its totient is φ = 29892930.

The previous prime is 29892913. The next prime is 29892943. The reversal of 29892931 is 13929892.

Together with previous prime (29892913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29892931 - 27 = 29892803 is a prime.

It is a super-2 number, since 2×298929312 = 1787174647541522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29892991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14946465 + 14946466.

It is an arithmetic number, because the mean of its divisors is an integer number (14946466).

Almost surely, 229892931 is an apocalyptic number.

29892931 is a deficient number, since it is larger than the sum of its proper divisors (1).

29892931 is an equidigital number, since it uses as much as digits as its factorization.

29892931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 43.

The square root of 29892931 is about 5467.4428209173. The cubic root of 29892931 is about 310.3531563195.

The spelling of 29892931 in words is "twenty-nine million, eight hundred ninety-two thousand, nine hundred thirty-one".