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768861244 = 221722934931
BaseRepresentation
bin101101110100111…
…110010000111100
31222120202012100101
4231310332100330
53033312024434
6204143210444
725024132654
oct5564762074
91876665311
10768861244
11365002918
121955a6a24
13c339c7a8
1474181364
1547775b14
hex2dd3e43c

768861244 has 24 divisors (see below), whose sum is σ = 1425565008. Its totient is φ = 361585920.

The previous prime is 768861217. The next prime is 768861271. The reversal of 768861244 is 442168867.

It is an interprime number because it is at equal distance from previous prime (768861217) and next prime (768861271).

It is a super-2 number, since 2×7688612442 = 1182295225050455072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 768861194 and 768861203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153459 + ... + 158389.

It is an arithmetic number, because the mean of its divisors is an integer number (59398542).

Almost surely, 2768861244 is an apocalyptic number.

It is an amenable number.

768861244 is a deficient number, since it is larger than the sum of its proper divisors (656703764).

768861244 is a wasteful number, since it uses less digits than its factorization.

768861244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245 (or 7243 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 768861244 is about 27728.3473001908. The cubic root of 768861244 is about 916.1135850071.

The spelling of 768861244 in words is "seven hundred sixty-eight million, eight hundred sixty-one thousand, two hundred forty-four".

Divisors: 1 2 4 17 34 68 2293 4586 4931 9172 9862 19724 38981 77962 83827 155924 167654 335308 11306783 22613566 45227132 192215311 384430622 768861244