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3125131250 = 2551767439
BaseRepresentation
bin1011101001000101…
…1011011111110010
322001210111010010212
42322101123133302
522400013200000
61234034224122
7140305114553
oct27221333762
98053433125
103125131250
1113640673aa
12732725042
133aa5b6bb7
1421909a32a
1513455ec35
hexba45b7f2

3125131250 has 96 divisors (see below), whose sum is σ = 6310846080. Its totient is φ = 1156320000.

The previous prime is 3125131237. The next prime is 3125131283. The reversal of 3125131250 is 521315213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7118531 + ... + 7118969.

It is an arithmetic number, because the mean of its divisors is an integer number (65737980).

Almost surely, 23125131250 is an apocalyptic number.

3125131250 is an abundant number, since it is smaller than the sum of its proper divisors (3185714830).

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

3125131250 is an equidigital number, since it uses as much as digits as its factorization.

3125131250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 3125131250 is about 55902.8733608569. The cubic root of 3125131250 is about 1462.0293369441.

Adding to 3125131250 its reverse (521315213), we get a palindrome (3646446463).

The spelling of 3125131250 in words is "three billion, one hundred twenty-five million, one hundred thirty-one thousand, two hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 67 85 125 134 170 250 335 425 439 625 670 850 878 1139 1250 1675 2125 2195 2278 3125 3350 4250 4390 5695 6250 7463 8375 10625 10975 11390 14926 16750 21250 21950 28475 29413 37315 41875 53125 54875 56950 58826 74630 83750 106250 109750 142375 147065 186575 209375 274375 284750 294130 373150 418750 500021 548750 711875 735325 932875 1000042 1371875 1423750 1470650 1865750 2500105 2743750 3559375 3676625 4664375 5000210 7118750 7353250 9328750 12500525 18383125 23321875 25001050 36766250 46643750 62502625 91915625 125005250 183831250 312513125 625026250 1562565625 3125131250