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513147132 = 223214254087
BaseRepresentation
bin11110100101100…
…000000011111100
31022202120120112100
4132211200003330
52022331202012
6122530305100
715500451531
oct3645400374
91282516470
10513147132
11243727043
12123a28190
1382409274
144c218d88
15300b38dc
hex1e9600fc

513147132 has 18 divisors (see below), whose sum is σ = 1297122008. Its totient is φ = 171049032.

The previous prime is 513147119. The next prime is 513147137. The reversal of 513147132 is 231741315.

513147132 is a `hidden beast` number, since 513 + 14 + 7 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 513147096 and 513147105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513147137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7127008 + ... + 7127079.

Almost surely, 2513147132 is an apocalyptic number.

It is an amenable number.

513147132 is an abundant number, since it is smaller than the sum of its proper divisors (783974876).

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

513147132 is a wasteful number, since it uses less digits than its factorization.

513147132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14254097 (or 14254092 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 513147132 is about 22652.7510912030. The cubic root of 513147132 is about 800.5970189330.

Adding to 513147132 its reverse (231741315), we get a palindrome (744888447).

The spelling of 513147132 in words is "five hundred thirteen million, one hundred forty-seven thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 14254087 28508174 42762261 57016348 85524522 128286783 171049044 256573566 513147132