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76666666674 = 23131768384653
BaseRepresentation
bin100011101100110110…
…0000111111010110010
321022220000212012022010
41013121230013322302
52224003131313144
655115320423350
75352604625433
oct1073154077262
9238800765263
1076666666674
112a572375454
1212a37617b56
1372ca681530
1439d41a348a
151edaa345b9
hex11d9b07eb2

76666666674 has 64 divisors (see below), whose sum is σ = 175099688064. Its totient is φ = 22169342976.

The previous prime is 76666666673. The next prime is 76666666717. The reversal of 76666666674 is 47666666667.

It is not an unprimeable number, because it can be changed into a prime (76666666673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 863332 + ... + 947984.

It is an arithmetic number, because the mean of its divisors is an integer number (2735932626).

Almost surely, 276666666674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76666666674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87549844032).

76666666674 is an abundant number, since it is smaller than the sum of its proper divisors (98433021390).

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

76666666674 is a wasteful number, since it uses less digits than its factorization.

76666666674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85371.

The product of its digits is 329204736, while the sum is 66.

The spelling of 76666666674 in words is "seventy-six billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred seventy-four".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 683 1326 1366 2049 4098 8879 11611 17758 23222 26637 34833 53274 69666 84653 150943 169306 253959 301886 452829 507918 905658 1100489 1439101 2200978 2878202 3301467 4317303 6602934 8634606 18708313 37416626 56124939 57817999 112249878 115635998 173453997 346907994 751633987 982905983 1503267974 1965811966 2254901961 2948717949 4509803922 5897435898 12777777779 25555555558 38333333337 76666666674