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69990714 = 23219072039
BaseRepresentation
bin1000010101111…
…11100100111010
311212200220012200
410022333210322
5120404200324
610540051030
71506624363
oct412774472
9155626180
1069990714
1136565072
121b533a76
1311667531
14941cb6a
156227ec9
hex42bf93a

69990714 has 24 divisors (see below), whose sum is σ = 151800480. Its totient is φ = 23306568.

The previous prime is 69990707. The next prime is 69990719. The reversal of 69990714 is 41709996.

It is a self number, because there is not a number n which added to its sum of digits gives 69990714.

It is not an unprimeable number, because it can be changed into a prime (69990719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33307 + ... + 35345.

It is an arithmetic number, because the mean of its divisors is an integer number (6325020).

Almost surely, 269990714 is an apocalyptic number.

69990714 is an abundant number, since it is smaller than the sum of its proper divisors (81809766).

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

69990714 is a wasteful number, since it uses less digits than its factorization.

69990714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 69990714 is about 8366.0453022919. The cubic root of 69990714 is about 412.1103052439.

The spelling of 69990714 in words is "sixty-nine million, nine hundred ninety thousand, seven hundred fourteen".

Divisors: 1 2 3 6 9 18 1907 2039 3814 4078 5721 6117 11442 12234 17163 18351 34326 36702 3888373 7776746 11665119 23330238 34995357 69990714