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69486340 = 22571145121
BaseRepresentation
bin1000010010001…
…00011100000100
311211202021100011
410021010130010
5120242030330
610521200004
71502424040
oct411043404
9154667304
1069486340
1136250130
121b330004
131151baa1
14932b020
15617882a
hex4244704

69486340 has 48 divisors (see below), whose sum is σ = 181931904. Its totient is φ = 21657600.

The previous prime is 69486337. The next prime is 69486341. The reversal of 69486340 is 4368496.

It is a junction number, because it is equal to n+sod(n) for n = 69486293 and 69486302.

It is not an unprimeable number, because it can be changed into a prime (69486341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21021 + ... + 24100.

It is an arithmetic number, because the mean of its divisors is an integer number (3790248).

Almost surely, 269486340 is an apocalyptic number.

It is an amenable number.

69486340 is an abundant number, since it is smaller than the sum of its proper divisors (112445564).

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

69486340 is a wasteful number, since it uses less digits than its factorization.

69486340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45148 (or 45146 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 69486340 is about 8335.8466876497. The cubic root of 69486340 is about 411.1179877647.

The spelling of 69486340 in words is "sixty-nine million, four hundred eighty-six thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 45121 90242 180484 225605 315847 451210 496331 631694 902420 992662 1263388 1579235 1985324 2481655 3158470 3474317 4963310 6316940 6948634 9926620 13897268 17371585 34743170 69486340