Search a number
-
+
3115380 = 2235137379
BaseRepresentation
bin1011111000100101110100
312212021111110
423320211310
51244143010
6150435020
735323512
oct13704564
95767443
103115380
1118386a4
121062a70
13851028
145b14b2
15418120
hex2f8974

3115380 has 48 divisors (see below), whose sum is σ = 8809920. Its totient is φ = 822528.

The previous prime is 3115379. The next prime is 3115381. The reversal of 3115380 is 835113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3115379) and next prime (3115381).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115381) 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, 8031 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (183540).

Almost surely, 23115380 is an apocalyptic number.

3115380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3115380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4404960).

3115380 is an abundant number, since it is smaller than the sum of its proper divisors (5694540).

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

3115380 is a wasteful number, since it uses less digits than its factorization.

3115380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 3115380 is about 1765.0439088023. The cubic root of 3115380 is about 146.0507111012.

The spelling of 3115380 in words is "three million, one hundred fifteen thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 137 274 379 411 548 685 758 822 1137 1370 1516 1644 1895 2055 2274 2740 3790 4110 4548 5685 7580 8220 11370 22740 51923 103846 155769 207692 259615 311538 519230 623076 778845 1038460 1557690 3115380