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513895742 = 23128792
BaseRepresentation
bin11110101000010…
…110110100111110
31022210222121102122
4132220112310332
52023024130432
6122554322542
715510020213
oct3650266476
91283877378
10513895742
11244098528
12124129452
138260bc29
144c371b0a
15301b0612
hex1ea16d3e

513895742 has 12 divisors (see below), whose sum is σ = 795986016. Its totient is φ = 248572860.

The previous prime is 513895741. The next prime is 513895783. The reversal of 513895742 is 247598315.

It is a junction number, because it is equal to n+sod(n) for n = 513895693 and 513895702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513895741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177059 + ... + 179937.

It is an arithmetic number, because the mean of its divisors is an integer number (66332168).

Almost surely, 2513895742 is an apocalyptic number.

513895742 is a deficient number, since it is larger than the sum of its proper divisors (282090274).

513895742 is an frugal number, since it uses more digits than its factorization.

513895742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5791 (or 2912 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 513895742 is about 22669.2686692800. The cubic root of 513895742 is about 800.9861495119.

The spelling of 513895742 in words is "five hundred thirteen million, eight hundred ninety-five thousand, seven hundred forty-two".

Divisors: 1 2 31 62 2879 5758 89249 178498 8288641 16577282 256947871 513895742