Search a number
-
+
3130386 = 237731021
BaseRepresentation
bin1011111100010000010010
312220001002020
423330100102
51300133021
6151032310
735415330
oct13742022
95801066
103130386
1118489a6
12106b696
13857acc
145b6b50
1541c7c6
hex2fc412

3130386 has 32 divisors (see below), whose sum is σ = 7260288. Its totient is φ = 881280.

The previous prime is 3130373. The next prime is 3130399. The reversal of 3130386 is 6830313.

It is an interprime number because it is at equal distance from previous prime (3130373) and next prime (3130399).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2556 + ... + 3576.

It is an arithmetic number, because the mean of its divisors is an integer number (226884).

Almost surely, 23130386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3130386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3630144).

3130386 is an abundant number, since it is smaller than the sum of its proper divisors (4129902).

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

3130386 is a wasteful number, since it uses less digits than its factorization.

3130386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3130386 is about 1769.2896879822. The cubic root of 3130386 is about 146.2848320862.

Adding to 3130386 its reverse (6830313), we get a palindrome (9960699).

The spelling of 3130386 in words is "three million, one hundred thirty thousand, three hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 73 146 219 438 511 1021 1022 1533 2042 3063 3066 6126 7147 14294 21441 42882 74533 149066 223599 447198 521731 1043462 1565193 3130386