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69680518 = 2172049427
BaseRepresentation
bin1000010011100…
…11110110000110
311212010010200221
410021303312012
5120314234033
610525254554
71504163125
oct411636606
9155103627
1069680518
1136373006
121b40445a
131158929b
14937babc
1561b612d
hex4273d86

69680518 has 8 divisors (see below), whose sum is σ = 110669112. Its totient is φ = 32790816.

The previous prime is 69680497. The next prime is 69680519. The reversal of 69680518 is 81508696.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69680519) 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 3 ways as a sum of consecutive naturals, for example, 1024680 + ... + 1024747.

It is an arithmetic number, because the mean of its divisors is an integer number (13833639).

Almost surely, 269680518 is an apocalyptic number.

69680518 is a deficient number, since it is larger than the sum of its proper divisors (40988594).

69680518 is a wasteful number, since it uses less digits than its factorization.

69680518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049446.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 69680518 is about 8347.4857292481. The cubic root of 69680518 is about 411.5005848946.

The spelling of 69680518 in words is "sixty-nine million, six hundred eighty thousand, five hundred eighteen".

Divisors: 1 2 17 34 2049427 4098854 34840259 69680518