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76966197021 = 3271221685667
BaseRepresentation
bin100011110101110001…
…0101111011100011101
321100122220110220200200
41013223202233130131
52230111321301041
655205140414113
75363202610650
oct1075342573435
9240586426620
1076966197021
112a706458a9a
1212abb9a7339
13734774661c
143a21c93897
152006e9e1b6
hex11eb8af71d

76966197021 has 12 divisors (see below), whose sum is σ = 127055309472. Its totient is φ = 43980683976.

The previous prime is 76966196999. The next prime is 76966197029. The reversal of 76966197021 is 12079166967.

It is not a de Polignac number, because 76966197021 - 219 = 76965672733 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76966197029) 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, 610842771 + ... + 610842896.

It is an arithmetic number, because the mean of its divisors is an integer number (10587942456).

Almost surely, 276966197021 is an apocalyptic number.

It is an amenable number.

76966197021 is a deficient number, since it is larger than the sum of its proper divisors (50089112451).

76966197021 is a wasteful number, since it uses less digits than its factorization.

76966197021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221685680 (or 1221685677 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 76966197021 in words is "seventy-six billion, nine hundred sixty-six million, one hundred ninety-seven thousand, twenty-one".

Divisors: 1 3 7 9 21 63 1221685667 3665057001 8551799669 10995171003 25655399007 76966197021