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676776730 = 2573197311
BaseRepresentation
bin101000010101101…
…100101100011010
31202011110211010211
4220111230230122
52341223323410
6151053401334
722525336000
oct5025545432
91664424124
10676776730
11318028413
1216a79924a
13aa29ab06
1465c50a70
153e63668a
hex2856cb1a

676776730 has 32 divisors (see below), whose sum is σ = 1420646400. Its totient is φ = 232036560.

The previous prime is 676776721. The next prime is 676776739. The reversal of 676776730 is 37677676.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (676776721) and next prime (676776739).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (676776739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95226 + ... + 102085.

It is an arithmetic number, because the mean of its divisors is an integer number (44395200).

Almost surely, 2676776730 is an apocalyptic number.

676776730 is an abundant number, since it is smaller than the sum of its proper divisors (743869670).

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

676776730 is a wasteful number, since it uses less digits than its factorization.

676776730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197339 (or 197325 counting only the distinct ones).

The product of its (nonzero) digits is 1555848, while the sum is 49.

The square root of 676776730 is about 26014.9328271283. The cubic root of 676776730 is about 877.9743049369.

The spelling of 676776730 in words is "six hundred seventy-six million, seven hundred seventy-six thousand, seven hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 197311 394622 986555 1381177 1973110 2762354 6905885 9668239 13811770 19336478 48341195 67677673 96682390 135355346 338388365 676776730