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85680314943 = 397571292711
BaseRepresentation
bin100111111001011110…
…0011101101000111111
322012011012121222012220
41033302330131220333
52400433130034233
6103205550300423
76122144442366
oct1176274355077
9265135558186
1085680314943
1133378338843
12147321b7713
138105bccb12
14420b32c7dd
152367009eb3
hex13f2f1da3f

85680314943 has 8 divisors (see below), whose sum is σ = 114241981056. Its totient is φ = 57119429400.

The previous prime is 85680314927. The next prime is 85680314969. The reversal of 85680314943 is 34941308658.

It is a Cunningham number, because it is equal to 2927122-1.

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

It is not a de Polignac number, because 85680314943 - 24 = 85680314927 is a prime.

It is a super-2 number, since 2×856803149432 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85680314903) 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, 146358 + ... + 439068.

It is an arithmetic number, because the mean of its divisors is an integer number (14280247632).

Almost surely, 285680314943 is an apocalyptic number.

85680314943 is a deficient number, since it is larger than the sum of its proper divisors (28561666113).

85680314943 is a wasteful number, since it uses less digits than its factorization.

85680314943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390285.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 85680314943 in words is "eighty-five billion, six hundred eighty million, three hundred fourteen thousand, nine hundred forty-three".

Divisors: 1 3 97571 292711 292713 878133 28560104981 85680314943