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5212129 = 13230841
BaseRepresentation
bin10011111000011111100001
3100210210200211
4103320133201
52313242004
6303414121
762205466
oct23703741
910723624
105212129
112a3aa4a
1218b4341
131106500
1499966d
156ce504
hex4f87e1

5212129 has 6 divisors (see below), whose sum is σ = 5644086. Its totient is φ = 4811040.

The previous prime is 5212111. The next prime is 5212133. The reversal of 5212129 is 9212125.

It can be written as a sum of positive squares in 3 ways, for example, as 140625 + 5071504 = 375^2 + 2252^2 .

It is not a de Polignac number, because 5212129 - 213 = 5203937 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5212139) 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, 15252 + ... + 15589.

It is an arithmetic number, because the mean of its divisors is an integer number (940681).

Almost surely, 25212129 is an apocalyptic number.

It is an amenable number.

5212129 is a deficient number, since it is larger than the sum of its proper divisors (431957).

5212129 is a wasteful number, since it uses less digits than its factorization.

5212129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30867 (or 30854 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 5212129 is about 2283.0087603862. The cubic root of 5212129 is about 173.3824166552.

The spelling of 5212129 in words is "five million, two hundred twelve thousand, one hundred twenty-nine".

Divisors: 1 13 169 30841 400933 5212129