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3117930 = 235432417
BaseRepresentation
bin1011111001001101101010
312212101222220
423321031222
51244233210
6150454510
735334114
oct13711552
95771886
103117930
11183a602
121064436
1385223a
145b23b4
15418c70
hex2f936a

3117930 has 32 divisors (see below), whose sum is σ = 7660224. Its totient is φ = 811776.

The previous prime is 3117923. The next prime is 3117941. The reversal of 3117930 is 397113.

It is a self number, because there is not a number n which added to its sum of digits gives 3117930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82 + ... + 2498.

It is an arithmetic number, because the mean of its divisors is an integer number (239382).

Almost surely, 23117930 is an apocalyptic number.

3117930 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 3117930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3830112).

3117930 is an abundant number, since it is smaller than the sum of its proper divisors (4542294).

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

3117930 is a wasteful number, since it uses less digits than its factorization.

3117930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 3117930 is about 1765.7661226788. The cubic root of 3117930 is about 146.0905486969.

The spelling of 3117930 in words is "three million, one hundred seventeen thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 2417 4834 7251 12085 14502 24170 36255 72510 103931 207862 311793 519655 623586 1039310 1558965 3117930