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68853473053 = 731396785599
BaseRepresentation
bin100000000011111111…
…1001001111100011101
320120201111221211120121
41000013333021330131
52112002442114203
651344132514541
74655152602331
oct1000777117435
9216644854517
1068853473053
1127222a99442
1211416a7ba51
136653a56341
1434926457c1
151bceb390bd
hex1007fc9f1d

68853473053 has 8 divisors (see below), whose sum is σ = 70298816000. Its totient is φ = 67421701728.

The previous prime is 68853473033. The next prime is 68853473069. The reversal of 68853473053 is 35037435886.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68853473053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68853473033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3382653 + ... + 3402946.

It is an arithmetic number, because the mean of its divisors is an integer number (8787352000).

Almost surely, 268853473053 is an apocalyptic number.

It is an amenable number.

68853473053 is a deficient number, since it is larger than the sum of its proper divisors (1445342947).

68853473053 is a wasteful number, since it uses less digits than its factorization.

68853473053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785811.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 68853473053 in words is "sixty-eight billion, eight hundred fifty-three million, four hundred seventy-three thousand, fifty-three".

Divisors: 1 73 139 10147 6785599 495348727 943198261 68853473053