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3131245230 = 235656915889
BaseRepresentation
bin1011101010100011…
…0000001010101110
322002012222201221120
42322220300022232
522403044321410
61234413241410
7140411100561
oct27250601256
98065881846
103131245230
111367562983
12734793266
133ab947a39
14219c0c4d8
15134d6b570
hexbaa302ae

3131245230 has 32 divisors (see below), whose sum is σ = 7516605600. Its totient is φ = 834819072.

The previous prime is 3131245207. The next prime is 3131245237. The reversal of 3131245230 is 325421313.

It is a self number, because there is not a number n which added to its sum of digits gives 3131245230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131245237) 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, 189126 + ... + 205014.

It is an arithmetic number, because the mean of its divisors is an integer number (234893925).

Almost surely, 23131245230 is an apocalyptic number.

3131245230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3131245230 is an abundant number, since it is smaller than the sum of its proper divisors (4385360370).

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

3131245230 is a wasteful number, since it uses less digits than its factorization.

3131245230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22468.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 3131245230 is about 55957.5305924055. The cubic root of 3131245230 is about 1462.9821497448.

Adding to 3131245230 its reverse (325421313), we get a palindrome (3456666543).

The spelling of 3131245230 in words is "three billion, one hundred thirty-one million, two hundred forty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 6569 13138 15889 19707 31778 32845 39414 47667 65690 79445 95334 98535 158890 197070 238335 476670 104374841 208749682 313124523 521874205 626249046 1043748410 1565622615 3131245230