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3130220232 = 2332113384737
BaseRepresentation
bin1011101010010011…
…0101111011001000
322002011001122220200
42322210311323020
522402314021412
61234335252200
7140366301336
oct27244657310
98064048820
103130220232
111366a22877
1273437a060
133ab679329
14219a22b56
15134c179dc
hexba935ec8

3130220232 has 48 divisors (see below), whose sum is σ = 8552725740. Its totient is φ = 1034170368.

The previous prime is 3130220231. The next prime is 3130220243. The reversal of 3130220232 is 2320220313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2895946596 + 234273636 = 53814^2 + 15306^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3130220231) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 184233 + ... + 200504.

Almost surely, 23130220232 is an apocalyptic number.

It is an amenable number.

3130220232 is an abundant number, since it is smaller than the sum of its proper divisors (5422505508).

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

3130220232 is a wasteful number, since it uses less digits than its factorization.

3130220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384862 (or 384855 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3130220232 is about 55948.3711291044. The cubic root of 3130220232 is about 1462.8224989434.

Adding to 3130220232 its reverse (2320220313), we get a palindrome (5450440545).

The spelling of 3130220232 in words is "three billion, one hundred thirty million, two hundred twenty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 113 226 339 452 678 904 1017 1356 2034 2712 4068 8136 384737 769474 1154211 1538948 2308422 3077896 3462633 4616844 6925266 9233688 13850532 27701064 43475281 86950562 130425843 173901124 260851686 347802248 391277529 521703372 782555058 1043406744 1565110116 3130220232