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1518675012 = 223242185417
BaseRepresentation
bin101101010000101…
…0010010001000100
310220211122200110200
41122201102101010
511102240100022
6410410250500
752430344641
oct13241222104
93824580420
101518675012
1170a286018
12364726a30
131b283058a
141059a4dc8
158d4d7bac
hex5a852444

1518675012 has 18 divisors (see below), whose sum is σ = 3838873038. Its totient is φ = 506224992.

The previous prime is 1518675007. The next prime is 1518675013. The reversal of 1518675012 is 2105768151.

It can be written as a sum of positive squares in only one way, i.e., 1502802756 + 15872256 = 38766^2 + 3984^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 42185417 = 1518675012 / (1 + 5 + 1 + 8 + 6 + 7 + 5 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1518675013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21092673 + ... + 21092744.

Almost surely, 21518675012 is an apocalyptic number.

1518675012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1518675012 is an abundant number, since it is smaller than the sum of its proper divisors (2320198026).

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

1518675012 is a wasteful number, since it uses less digits than its factorization.

1518675012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42185427 (or 42185422 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 1518675012 is about 38970.1810619350. The cubic root of 1518675012 is about 1149.4452300858.

The spelling of 1518675012 in words is "one billion, five hundred eighteen million, six hundred seventy-five thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 42185417 84370834 126556251 168741668 253112502 379668753 506225004 759337506 1518675012