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3109930 = 25353881
BaseRepresentation
bin1011110111010000101010
312212000000121
423313100222
51244004210
6150353454
735301565
oct13672052
95760017
103109930
11183459a
12105b88a
1384b6c5
145ad4dc
154166da
hex2f742a

3109930 has 16 divisors (see below), whose sum is σ = 5620104. Its totient is φ = 1239040.

The previous prime is 3109921. The next prime is 3109937. The reversal of 3109930 is 399013.

It can be written as a sum of positive squares in 4 ways, for example, as 1857769 + 1252161 = 1363^2 + 1119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3109895 and 3109904.

It is not an unprimeable number, because it can be changed into a prime (3109937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3090 + ... + 3970.

Almost surely, 23109930 is an apocalyptic number.

3109930 is a deficient number, since it is larger than the sum of its proper divisors (2510174).

3109930 is a wasteful number, since it uses less digits than its factorization.

3109930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 3109930 is about 1763.4993620640. The cubic root of 3109930 is about 145.9654950673.

The spelling of 3109930 in words is "three million, one hundred nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 353 706 881 1762 1765 3530 4405 8810 310993 621986 1554965 3109930