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517122030 = 23517237401
BaseRepresentation
bin11110110100101…
…010011111101110
31100001001112001210
4132310222133232
52024340401110
6123151415250
715546315255
oct3664523756
91301045053
10517122030
112459a1487
12125224526
138319b589
144c97179c
15305eb520
hex1ed2a7ee

517122030 has 16 divisors (see below), whose sum is σ = 1241092944. Its totient is φ = 137899200.

The previous prime is 517122019. The next prime is 517122043. The reversal of 517122030 is 30221715.

It is a super-2 number, since 2×5171220302 = 534830387822641800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 517121988 and 517122006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8618671 + ... + 8618730.

It is an arithmetic number, because the mean of its divisors is an integer number (77568309).

Almost surely, 2517122030 is an apocalyptic number.

517122030 is an abundant number, since it is smaller than the sum of its proper divisors (723970914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

517122030 is a wasteful number, since it uses less digits than its factorization.

517122030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17237411.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 517122030 is about 22740.3172801085. The cubic root of 517122030 is about 802.6588771336.

Adding to 517122030 its reverse (30221715), we get a palindrome (547343745).

The spelling of 517122030 in words is "five hundred seventeen million, one hundred twenty-two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 17237401 34474802 51712203 86187005 103424406 172374010 258561015 517122030