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69980346 = 23215125747
BaseRepresentation
bin1000010101111…
…01000010111010
311212200100222200
410022331002322
5120403332341
610535531030
71506552222
oct412750272
9155610880
1069980346
11365582a7
121b529a76
13116628b7
149419082
156224db6
hex42bd0ba

69980346 has 24 divisors (see below), whose sum is σ = 152634144. Its totient is φ = 23171400.

The previous prime is 69980341. The next prime is 69980353. The reversal of 69980346 is 64308996.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69980341) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10156 + ... + 15591.

It is an arithmetic number, because the mean of its divisors is an integer number (6359756).

Almost surely, 269980346 is an apocalyptic number.

69980346 is an abundant number, since it is smaller than the sum of its proper divisors (82653798).

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

69980346 is a wasteful number, since it uses less digits than its factorization.

69980346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25906 (or 25903 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 69980346 is about 8365.4256317297. The cubic root of 69980346 is about 412.0899550650.

The spelling of 69980346 in words is "sixty-nine million, nine hundred eighty thousand, three hundred forty-six".

Divisors: 1 2 3 6 9 18 151 302 453 906 1359 2718 25747 51494 77241 154482 231723 463446 3887797 7775594 11663391 23326782 34990173 69980346