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511341342 = 23312749147
BaseRepresentation
bin11110011110100…
…111001100011110
31022122011211110020
4132132213030132
52021400410332
6122423453010
715446221041
oct3636471436
91278154406
10511341342
11242703356
121232b7166
1381c26355
144bca8c58
152ed5882c
hex1e7a731e

511341342 has 16 divisors (see below), whose sum is σ = 1055672832. Its totient is φ = 164948760.

The previous prime is 511341331. The next prime is 511341343. The reversal of 511341342 is 243143115.

It is a happy number.

It is a super-2 number, since 2×5113413422 = 522939936076721928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511341343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374388 + ... + 1374759.

It is an arithmetic number, because the mean of its divisors is an integer number (65979552).

Almost surely, 2511341342 is an apocalyptic number.

511341342 is an abundant number, since it is smaller than the sum of its proper divisors (544331490).

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

511341342 is a wasteful number, since it uses less digits than its factorization.

511341342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749183.

The product of its digits is 1440, while the sum is 24.

The square root of 511341342 is about 22612.8578910318. The cubic root of 511341342 is about 799.6568017481.

Adding to 511341342 its reverse (243143115), we get a palindrome (754484457).

The spelling of 511341342 in words is "five hundred eleven million, three hundred forty-one thousand, three hundred forty-two".

Divisors: 1 2 3 6 31 62 93 186 2749147 5498294 8247441 16494882 85223557 170447114 255670671 511341342