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270402012 = 22327511167
BaseRepresentation
bin10000000111100…
…000000111011100
3200211210211211100
4100013200013130
51023210331022
642455353100
76462244026
oct2007400734
9624724740
10270402012
111296a9041
1276682790
1344036aba
1427cab016
1518b141ac
hex101e01dc

270402012 has 18 divisors (see below), whose sum is σ = 683516288. Its totient is φ = 90133992.

The previous prime is 270401993. The next prime is 270402019. The reversal of 270402012 is 210204072.

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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270402019) 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, 3755548 + ... + 3755619.

Almost surely, 2270402012 is an apocalyptic number.

It is an amenable number.

270402012 is an abundant number, since it is smaller than the sum of its proper divisors (413114276).

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

270402012 is a wasteful number, since it uses less digits than its factorization.

270402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511177 (or 7511172 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 270402012 is about 16443.9050106719. The cubic root of 270402012 is about 646.6510288964.

Adding to 270402012 its reverse (210204072), we get a palindrome (480606084).

The spelling of 270402012 in words is "two hundred seventy million, four hundred two thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 7511167 15022334 22533501 30044668 45067002 67600503 90134004 135201006 270402012