Search a number
-
+
3130587220 = 225156529361
BaseRepresentation
bin1011101010011000…
…1111100001010100
322002011202022022211
42322212033201110
522402412242340
61234351203204
7140402360305
oct27246174124
98064668284
103130587220
111367153572
12734516504
133ab777397
14219aba7ac
15134c8b5ea
hexba98f854

3130587220 has 12 divisors (see below), whose sum is σ = 6574233204. Its totient is φ = 1252234880.

The previous prime is 3130587217. The next prime is 3130587221. The reversal of 3130587220 is 227850313.

3130587220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 490888336 + 2639698884 = 22156^2 + 51378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130587221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78264661 + ... + 78264700.

It is an arithmetic number, because the mean of its divisors is an integer number (547852767).

Almost surely, 23130587220 is an apocalyptic number.

It is an amenable number.

3130587220 is an abundant number, since it is smaller than the sum of its proper divisors (3443645984).

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

3130587220 is a wasteful number, since it uses less digits than its factorization.

3130587220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156529370 (or 156529368 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 3130587220 is about 55951.6507352553. The cubic root of 3130587220 is about 1462.8796639654.

The spelling of 3130587220 in words is "three billion, one hundred thirty million, five hundred eighty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 156529361 313058722 626117444 782646805 1565293610 3130587220