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6970439286666 = 2321920381401423
BaseRepresentation
bin110010101101110111010…
…0011101011111110001010
3220200100220220021011000200
41211123232203223332022
51403200424424133131
622454101532513030
71316411661230412
oct145335643537612
926610826234020
106970439286666
112248168292949
12946b0201b776
133b740427ba8b
141a152a29b642
15c14b54492e6
hex656ee8ebf8a

6970439286666 has 24 divisors (see below), whose sum is σ = 15897493110720. Its totient is φ = 2201191353576.

The previous prime is 6970439286661. The next prime is 6970439286677. The reversal of 6970439286666 is 6666829340796.

It is a junction number, because it is equal to n+sod(n) for n = 6970439286594 and 6970439286603.

It is not an unprimeable number, because it can be changed into a prime (6970439286661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10190700370 + ... + 10190701053.

It is an arithmetic number, because the mean of its divisors is an integer number (662395546280).

Almost surely, 26970439286666 is an apocalyptic number.

6970439286666 is an abundant number, since it is smaller than the sum of its proper divisors (8927053824054).

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

6970439286666 is a wasteful number, since it uses less digits than its factorization.

6970439286666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381401450 (or 20381401447 counting only the distinct ones).

The product of its (nonzero) digits is 846526464, while the sum is 72.

The spelling of 6970439286666 in words is "six trillion, nine hundred seventy billion, four hundred thirty-nine million, two hundred eighty-six thousand, six hundred sixty-six".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 20381401423 40762802846 61144204269 122288408538 183432612807 366865225614 387246627037 774493254074 1161739881111 2323479762222 3485219643333 6970439286666