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29875189 is a prime number
BaseRepresentation
bin111000111110…
…1101111110101
32002012211001111
41301331233311
530122001224
62544155021
7511635451
oct161755765
962184044
1029875189
1115955743
12a008a71
136260236
143d79661
152951d94
hex1c7dbf5

29875189 has 2 divisors, whose sum is σ = 29875190. Its totient is φ = 29875188.

The previous prime is 29875151. The next prime is 29875207. The reversal of 29875189 is 98157892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23600164 + 6275025 = 4858^2 + 2505^2 .

It is a cyclic number.

It is not a de Polignac number, because 29875189 - 211 = 29873141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29875789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14937594 + 14937595.

It is an arithmetic number, because the mean of its divisors is an integer number (14937595).

Almost surely, 229875189 is an apocalyptic number.

It is an amenable number.

29875189 is a deficient number, since it is larger than the sum of its proper divisors (1).

29875189 is an equidigital number, since it uses as much as digits as its factorization.

29875189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 49.

The square root of 29875189 is about 5465.8200665591. The cubic root of 29875189 is about 310.2917440811.

The spelling of 29875189 in words is "twenty-nine million, eight hundred seventy-five thousand, one hundred eighty-nine".