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212013352 = 2326501669
BaseRepresentation
bin11001010001100…
…01000100101000
3112202221101122101
430220301010220
5413233411402
633012103144
75153040505
oct1450610450
9482841571
10212013352
11a9748851
125b004ab4
1334c023b5
142022c4ac
151392db87
hexca31128

212013352 has 8 divisors (see below), whose sum is σ = 397525050. Its totient is φ = 106006672.

The previous prime is 212013323. The next prime is 212013353. The reversal of 212013352 is 253310212.

It can be written as a sum of positive squares in only one way, i.e., 138156516 + 73856836 = 11754^2 + 8594^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2120133522 = 89899322852551808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212013353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13250827 + ... + 13250842.

Almost surely, 2212013352 is an apocalyptic number.

It is an amenable number.

212013352 is a deficient number, since it is larger than the sum of its proper divisors (185511698).

212013352 is a wasteful number, since it uses less digits than its factorization.

212013352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26501675 (or 26501671 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 212013352 is about 14560.6782809044. The cubic root of 212013352 is about 596.2857134985.

Adding to 212013352 its reverse (253310212), we get a palindrome (465323564).

The spelling of 212013352 in words is "two hundred twelve million, thirteen thousand, three hundred fifty-two".

Divisors: 1 2 4 8 26501669 53003338 106006676 212013352