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69804340 = 2253490217
BaseRepresentation
bin1000010100100…
…10000100110100
311212100102112221
410022102010310
5120332214330
610532052124
71505220124
oct412220464
9155312487
1069804340
1136448041
121b464044
1311600758
1493b0c84
1561dcb7a
hex4292134

69804340 has 12 divisors (see below), whose sum is σ = 146589156. Its totient is φ = 27921728.

The previous prime is 69804331. The next prime is 69804349. The reversal of 69804340 is 4340896.

It is an interprime number because it is at equal distance from previous prime (69804331) and next prime (69804349).

It can be written as a sum of positive squares in 2 ways, for example, as 50637456 + 19166884 = 7116^2 + 4378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69804296 and 69804305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69804349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745089 + ... + 1745128.

It is an arithmetic number, because the mean of its divisors is an integer number (12215763).

Almost surely, 269804340 is an apocalyptic number.

It is an amenable number.

69804340 is an abundant number, since it is smaller than the sum of its proper divisors (76784816).

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

69804340 is a wasteful number, since it uses less digits than its factorization.

69804340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490226 (or 3490224 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 69804340 is about 8354.8991615698. The cubic root of 69804340 is about 411.7441856200.

The spelling of 69804340 in words is "sixty-nine million, eight hundred four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 3490217 6980434 13960868 17451085 34902170 69804340