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68472854848 = 261069888357
BaseRepresentation
bin111111110001010011…
…001101100101000000
320112201222202102120001
4333301103031211000
52110213022323343
651242254525344
74642551443266
oct776123154500
9215658672501
1068472854848
1127048161342
121132b506854
1365c2c3c978
143457c88436
151bab50344d
hexff14cd940

68472854848 has 14 divisors (see below), whose sum is σ = 135875821466. Its totient is φ = 34236427392.

The previous prime is 68472854833. The next prime is 68472854851. The reversal of 68472854848 is 84845827486.

68472854848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46790881344 + 21681973504 = 216312^2 + 147248^2 .

It is a Harshad number since it is a multiple of its sum of digits (64), and also a Moran number because the ratio is a prime number: 1069888357 = 68472854848 / (6 + 8 + 4 + 7 + 2 + 8 + 5 + 4 + 8 + 4 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 68472854848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534944115 + ... + 534944242.

It is an arithmetic number, because the mean of its divisors is an integer number (9705415819).

Almost surely, 268472854848 is an apocalyptic number.

It is an amenable number.

68472854848 is a deficient number, since it is larger than the sum of its proper divisors (67402966618).

68472854848 is a wasteful number, since it uses less digits than its factorization.

68472854848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069888369 (or 1069888359 counting only the distinct ones).

The product of its digits is 110100480, while the sum is 64.

The spelling of 68472854848 in words is "sixty-eight billion, four hundred seventy-two million, eight hundred fifty-four thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 32 64 1069888357 2139776714 4279553428 8559106856 17118213712 34236427424 68472854848