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3102129 = 32344681
BaseRepresentation
bin1011110101010110110001
312211121022200
423311112301
51243232004
6150253413
735240052
oct13652661
95747280
103102129
111829748
121057269
13847ca4
145aa729
15414239
hex2f55b1

3102129 has 6 divisors (see below), whose sum is σ = 4480866. Its totient is φ = 2068080.

The previous prime is 3102107. The next prime is 3102131. The reversal of 3102129 is 9212013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3027600 + 74529 = 1740^2 + 273^2 .

It is not a de Polignac number, because 3102129 - 25 = 3102097 is a prime.

It is a Curzon number.

3102129 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3102179) 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 5 ways as a sum of consecutive naturals, for example, 172332 + ... + 172349.

It is an arithmetic number, because the mean of its divisors is an integer number (746811).

Almost surely, 23102129 is an apocalyptic number.

It is an amenable number.

3102129 is a deficient number, since it is larger than the sum of its proper divisors (1378737).

3102129 is a wasteful number, since it uses less digits than its factorization.

3102129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344687 (or 344684 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 3102129 is about 1761.2861777690. The cubic root of 3102129 is about 145.8433454532.

The spelling of 3102129 in words is "three million, one hundred two thousand, one hundred twenty-nine".

Divisors: 1 3 9 344681 1034043 3102129