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69534340 = 22517919423
BaseRepresentation
bin1000010010100…
…00001010000100
311211211201011221
410021100022010
5120300044330
610522210124
71503014011
oct411201204
9154751157
1069534340
11362831a7
121b353944
13115378a5
149340708
156187b7a
hex4250284

69534340 has 24 divisors (see below), whose sum is σ = 146845440. Its totient is φ = 27656928.

The previous prime is 69534323. The next prime is 69534341. The reversal of 69534340 is 4343596.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 69534296 and 69534305.

It is not an unprimeable number, because it can be changed into a prime (69534341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6132 + ... + 13291.

It is an arithmetic number, because the mean of its divisors is an integer number (6118560).

Almost surely, 269534340 is an apocalyptic number.

It is an amenable number.

69534340 is an abundant number, since it is smaller than the sum of its proper divisors (77311100).

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

69534340 is a wasteful number, since it uses less digits than its factorization.

69534340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19611 (or 19609 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 69534340 is about 8338.7253222540. The cubic root of 69534340 is about 411.2126304492.

The spelling of 69534340 in words is "sixty-nine million, five hundred thirty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 19423 38846 77692 97115 194230 388460 3476717 6953434 13906868 17383585 34767170 69534340