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69213244221 = 3211699123679
BaseRepresentation
bin100000001110101101…
…1100100101100111101
320121122120221002211200
41000131123210230331
52113222042303341
651443544010113
75000111604012
oct1003533445475
9217576832750
1069213244221
1127398087890
12114b7460939
1366b0450ba4
1434c8337709
151c01502db6
hex101d6e4b3d

69213244221 has 12 divisors (see below), whose sum is σ = 109063294080. Its totient is φ = 41947420680.

The previous prime is 69213244171. The next prime is 69213244223. The reversal of 69213244221 is 12244231296.

It is a happy number.

69213244221 is a `hidden beast` number, since 69 + 2 + 132 + 442 + 21 = 666.

It is not a de Polignac number, because 69213244221 - 26 = 69213244157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69213244223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349561741 + ... + 349561938.

It is an arithmetic number, because the mean of its divisors is an integer number (9088607840).

Almost surely, 269213244221 is an apocalyptic number.

It is an amenable number.

69213244221 is a deficient number, since it is larger than the sum of its proper divisors (39850049859).

69213244221 is a wasteful number, since it uses less digits than its factorization.

69213244221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699123696 (or 699123693 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The spelling of 69213244221 in words is "sixty-nine billion, two hundred thirteen million, two hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 3 9 11 33 99 699123679 2097371037 6292113111 7690360469 23071081407 69213244221