Search a number
-
+
3180138 = 231340771
BaseRepresentation
bin1100001000011001101010
312222120022220
430020121222
51303231023
6152054510
736013353
oct14103152
95876286
103180138
111882315
121094436
13874650
145cad2a
1542c3e3
hex30866a

3180138 has 16 divisors (see below), whose sum is σ = 6849696. Its totient is φ = 978480.

The previous prime is 3180131. The next prime is 3180143. The reversal of 3180138 is 8310813.

It is a super-2 number, since 2×31801382 = 20226555398088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3180131) 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, 20308 + ... + 20463.

It is an arithmetic number, because the mean of its divisors is an integer number (428106).

Almost surely, 23180138 is an apocalyptic number.

3180138 is an abundant number, since it is smaller than the sum of its proper divisors (3669558).

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

3180138 is a wasteful number, since it uses less digits than its factorization.

3180138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40789.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 3180138 is about 1783.2941428716. The cubic root of 3180138 is about 147.0557426617.

The spelling of 3180138 in words is "three million, one hundred eighty thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 40771 81542 122313 244626 530023 1060046 1590069 3180138