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679672276975 = 52176126216867
BaseRepresentation
bin10011110001111111001…
…11111110011111101111
32101222100112022002000101
421320333213332133233
542113432100330400
61240123115411531
7100050625013626
oct11707747763757
92358315262011
10679672276975
1124227a3104aa
12ab884a53ba7
134c128c08a73
1424c796b06bd
1512a2e6a356a
hex9e3f9fe7ef

679672276975 has 24 divisors (see below), whose sum is σ = 906998765328. Its totient is φ = 503363827200.

The previous prime is 679672276937. The next prime is 679672276999. The reversal of 679672276975 is 579672276976.

It is not a de Polignac number, because 679672276975 - 229 = 679135406063 is a prime.

It is a super-2 number, since 2×6796722769752 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679672276898 and 679672276907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13082509 + ... + 13134358.

It is an arithmetic number, because the mean of its divisors is an integer number (37791615222).

Almost surely, 2679672276975 is an apocalyptic number.

679672276975 is a deficient number, since it is larger than the sum of its proper divisors (227326488353).

679672276975 is a wasteful number, since it uses less digits than its factorization.

679672276975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26216955 (or 26216950 counting only the distinct ones).

The product of its digits is 840157920, while the sum is 73.

Subtracting from 679672276975 its reverse (579672276976), we obtain a palindrome (99999999999).

The spelling of 679672276975 in words is "six hundred seventy-nine billion, six hundred seventy-two million, two hundred seventy-six thousand, nine hundred seventy-five".

Divisors: 1 5 17 25 61 85 305 425 1037 1525 5185 25925 26216867 131084335 445686739 655421675 1599228887 2228433695 7996144435 11142168475 27186891079 39980722175 135934455395 679672276975