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65212052 = 2231195227
BaseRepresentation
bin1111100011000…
…0111010010100
311112201010010012
43320300322110
5113143241202
610245415352
71421202413
oct370607224
9145633105
1065212052
11338a0864
1219a0a558
1310683419
14893747a
155ad2152
hex3e30e94

65212052 has 12 divisors (see below), whose sum is σ = 114179520. Its totient is φ = 32589336.

The previous prime is 65212031. The next prime is 65212067. The reversal of 65212052 is 25021256.

65212052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×652120522 = 8505223452101408, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 9863 + ... + 15089.

It is an arithmetic number, because the mean of its divisors is an integer number (9514960).

Almost surely, 265212052 is an apocalyptic number.

It is an amenable number.

65212052 is a deficient number, since it is larger than the sum of its proper divisors (48967468).

65212052 is a wasteful number, since it uses less digits than its factorization.

65212052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350 (or 8348 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 65212052 is about 8075.3979468507. The cubic root of 65212052 is about 402.5093335284.

The spelling of 65212052 in words is "sixty-five million, two hundred twelve thousand, fifty-two".

Divisors: 1 2 4 3119 5227 6238 10454 12476 20908 16303013 32606026 65212052