Search a number
-
+
3123105340 = 225156155267
BaseRepresentation
bin1011101000100110…
…1100111000111100
322001122200012010011
42322021230320330
522344003332330
61233522553004
7140251646245
oct27211547074
98048605104
103123105340
111362a032a3
12731b08764
133aa057a34
14218acdccc
151342ae82a
hexba26ce3c

3123105340 has 12 divisors (see below), whose sum is σ = 6558521256. Its totient is φ = 1249242128.

The previous prime is 3123105331. The next prime is 3123105353. The reversal of 3123105340 is 435013213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78077614 + ... + 78077653.

It is an arithmetic number, because the mean of its divisors is an integer number (546543438).

Almost surely, 23123105340 is an apocalyptic number.

It is an amenable number.

3123105340 is an abundant number, since it is smaller than the sum of its proper divisors (3435415916).

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

3123105340 is a wasteful number, since it uses less digits than its factorization.

3123105340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156155276 (or 156155274 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 3123105340 is about 55884.7505138924. The cubic root of 3123105340 is about 1461.7133416693.

Adding to 3123105340 its reverse (435013213), we get a palindrome (3558118553).

The spelling of 3123105340 in words is "three billion, one hundred twenty-three million, one hundred five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 156155267 312310534 624621068 780776335 1561552670 3123105340