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689707494618 = 23114951249103
BaseRepresentation
bin10100000100101011100…
…01010010110011011010
32102221020220022221122220
422002111301102303122
542300010104311433
61244503001124510
7100554410655132
oct12022561226332
92387226287586
10689707494618
11246559999aaa
12b1805789736
1350067ca707c
142554c39dac2
1512e1a6bb2b3
hexa095c52cda

689707494618 has 8 divisors (see below), whose sum is σ = 1379414989248. Its totient is φ = 229902498204.

The previous prime is 689707494587. The next prime is 689707494643. The reversal of 689707494618 is 816494707986.

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

689707494618 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57475624546 + ... + 57475624557.

It is an arithmetic number, because the mean of its divisors is an integer number (172426873656).

Almost surely, 2689707494618 is an apocalyptic number.

689707494618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

689707494618 is a wasteful number, since it uses less digits than its factorization.

689707494618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114951249108.

The product of its (nonzero) digits is 146313216, while the sum is 69.

The spelling of 689707494618 in words is "six hundred eighty-nine billion, seven hundred seven million, four hundred ninety-four thousand, six hundred eighteen".

Divisors: 1 2 3 6 114951249103 229902498206 344853747309 689707494618