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3109386930 = 2351319740471
BaseRepresentation
bin1011100101010101…
…0111101010110010
322000200212012222220
42321111113222302
522332000340210
61232312541510
7140024232006
oct27125275262
98020765886
103109386930
111356193471
127293b1896
133a7263830
14216d5c706
15132e9ec70
hexb9557ab2

3109386930 has 64 divisors (see below), whose sum is σ = 8077563648. Its totient is φ = 761483520.

The previous prime is 3109386923. The next prime is 3109386949. The reversal of 3109386930 is 396839013.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56595 + ... + 97065.

It is an arithmetic number, because the mean of its divisors is an integer number (126211932).

Almost surely, 23109386930 is an apocalyptic number.

3109386930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3109386930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4038781824).

3109386930 is an abundant number, since it is smaller than the sum of its proper divisors (4968176718).

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

3109386930 is a wasteful number, since it uses less digits than its factorization.

3109386930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40691.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 3109386930 is about 55761.8770308174. The cubic root of 3109386930 is about 1459.5699818836.

The spelling of 3109386930 in words is "three billion, one hundred nine million, three hundred eighty-six thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 197 390 394 591 985 1182 1970 2561 2955 5122 5910 7683 12805 15366 25610 38415 40471 76830 80942 121413 202355 242826 404710 526123 607065 1052246 1214130 1578369 2630615 3156738 5261230 7891845 7972787 15783690 15945574 23918361 39863935 47836722 79727870 103646231 119591805 207292462 239183610 310938693 518231155 621877386 1036462310 1554693465 3109386930