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69666714 = 232131783211
BaseRepresentation
bin1000010011100…
…00011110011010
311212002102202200
410021300132122
5120313313324
610525111030
71504104645
oct411603632
9155072680
1069666714
11363636a7
121b3b8476
1311582c10
149376a5c
1561b1ec9
hex427079a

69666714 has 96 divisors (see below), whose sum is σ = 175017024. Its totient is φ = 19837440.

The previous prime is 69666713. The next prime is 69666721. The reversal of 69666714 is 41766696.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 69666714.

It is not an unprimeable number, because it can be changed into a prime (69666713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330069 + ... + 330279.

It is an arithmetic number, because the mean of its divisors is an integer number (1823094).

Almost surely, 269666714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69666714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87508512).

69666714 is an abundant number, since it is smaller than the sum of its proper divisors (105350310).

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

69666714 is a wasteful number, since it uses less digits than its factorization.

69666714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 329 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 69666714 is about 8346.6588524990. The cubic root of 69666714 is about 411.4734097751.

The spelling of 69666714 in words is "sixty-nine million, six hundred sixty-six thousand, seven hundred fourteen".

Divisors: 1 2 3 6 9 13 17 18 26 34 39 51 78 83 102 117 153 166 211 221 234 249 306 422 442 498 633 663 747 1079 1266 1326 1411 1494 1899 1989 2158 2743 2822 3237 3587 3798 3978 4233 5486 6474 7174 8229 8466 9711 10761 12699 16458 17513 18343 19422 21522 24687 25398 32283 35026 36686 46631 49374 52539 55029 64566 93262 105078 110058 139893 157617 165087 227669 279786 297721 315234 330174 419679 455338 595442 683007 839358 893163 1366014 1786326 2049021 2679489 3870373 4098042 5358978 7740746 11611119 23222238 34833357 69666714