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212529348 = 22325903593
BaseRepresentation
bin11001010101011…
…11000011000100
3112210220121110100
430222233003010
5413401414343
633031124100
75160320043
oct1452570304
9483817410
10212529348
11a9a70499
125b213630
1335053215
142032455a
15139d19d3
hexcaaf0c4

212529348 has 18 divisors (see below), whose sum is σ = 537227054. Its totient is φ = 70843104.

The previous prime is 212529323. The next prime is 212529389. The reversal of 212529348 is 843925212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 209438784 + 3090564 = 14472^2 + 1758^2 .

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

It is a super-2 number, since 2×2125293482 = 90337447522610208, which contains 22 as substring.

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: 5903593 = 212529348 / (2 + 1 + 2 + 5 + 2 + 9 + 3 + 4 + 8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2951761 + ... + 2951832.

Almost surely, 2212529348 is an apocalyptic number.

It is an amenable number.

212529348 is an abundant number, since it is smaller than the sum of its proper divisors (324697706).

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

212529348 is a wasteful number, since it uses less digits than its factorization.

212529348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903603 (or 5903598 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 212529348 is about 14578.3863304551. The cubic root of 212529348 is about 596.7690663420.

The spelling of 212529348 in words is "two hundred twelve million, five hundred twenty-nine thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 5903593 11807186 17710779 23614372 35421558 53132337 70843116 106264674 212529348