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516430120 = 23512910753
BaseRepresentation
bin11110110010000…
…001100100101000
31022222202100221111
4132302001210220
52024201230440
6123124520104
715540404113
oct3662014450
91288670844
10516430120
11245569658
12124b50034
1382cb866b
144c83157a
15305114ea
hex1ec81928

516430120 has 16 divisors (see below), whose sum is σ = 1161967860. Its totient is φ = 206572032.

The previous prime is 516430111. The next prime is 516430121. The reversal of 516430120 is 21034615.

It can be written as a sum of positive squares in 2 ways, for example, as 444282084 + 72148036 = 21078^2 + 8494^2 .

It is a super-3 number, since 3×5164301203 (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 516430091 and 516430100.

It is not an unprimeable number, because it can be changed into a prime (516430121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6455337 + ... + 6455416.

Almost surely, 2516430120 is an apocalyptic number.

It is an amenable number.

516430120 is an abundant number, since it is smaller than the sum of its proper divisors (645537740).

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

516430120 is a wasteful number, since it uses less digits than its factorization.

516430120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12910764 (or 12910760 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 516430120 is about 22725.0988996748. The cubic root of 516430120 is about 802.3007311190.

Adding to 516430120 its reverse (21034615), we get a palindrome (537464735).

The spelling of 516430120 in words is "five hundred sixteen million, four hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 12910753 25821506 51643012 64553765 103286024 129107530 258215060 516430120