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6012164221 = 72122697229
BaseRepresentation
bin1011001100101101…
…00101100001111101
3120111222221120211221
411212112211201331
544303103223341
62432325313341
7301662360400
oct54626454175
916458846757
106012164221
112605789a68
1211b9565851
1374a76772b
14410697d37
15252c3bed1
hex1665a587d

6012164221 has 6 divisors (see below), whose sum is σ = 6993742110. Its totient is φ = 5153283576.

The previous prime is 6012164177. The next prime is 6012164293. The reversal of 6012164221 is 1224612106.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5958141721 + 54022500 = 77189^2 + 7350^2 .

It is not a de Polignac number, because 6012164221 - 29 = 6012163709 is a prime.

It is a super-2 number, since 2×60121642212 = 72292237240545073682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6012114221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61348566 + ... + 61348663.

It is an arithmetic number, because the mean of its divisors is an integer number (1165623685).

Almost surely, 26012164221 is an apocalyptic number.

It is an amenable number.

6012164221 is a deficient number, since it is larger than the sum of its proper divisors (981577889).

6012164221 is a wasteful number, since it uses less digits than its factorization.

6012164221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122697243 (or 122697236 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 6012164221 is about 77538.1468762312. The cubic root of 6012164221 is about 1818.3477559272.

Adding to 6012164221 its reverse (1224612106), we get a palindrome (7236776327).

The spelling of 6012164221 in words is "six billion, twelve million, one hundred sixty-four thousand, two hundred twenty-one".

Divisors: 1 7 49 122697229 858880603 6012164221