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3142205125 = 531131491493
BaseRepresentation
bin1011101101001010…
…0011111011000101
322002222121120002121
42323102203323011
522413401031000
61235444205541
7140603205613
oct27322437305
98088546077
103142205125
111372769244
127383998b1
133b0cb4497
1421b4626b3
15135cd3b1a
hexbb4a3ec5

3142205125 has 32 divisors (see below), whose sum is σ = 3985394400. Its totient is φ = 2473139200.

The previous prime is 3142205113. The next prime is 3142205141. The reversal of 3142205125 is 5215022413.

It can be written as a sum of positive squares in 16 ways, for example, as 2966218369 + 175986756 = 54463^2 + 13266^2 .

It is not a de Polignac number, because 3142205125 - 25 = 3142205093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 3142205125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2103879 + ... + 2105371.

It is an arithmetic number, because the mean of its divisors is an integer number (124543575).

Almost surely, 23142205125 is an apocalyptic number.

It is an amenable number.

3142205125 is a deficient number, since it is larger than the sum of its proper divisors (843189275).

3142205125 is a wasteful number, since it uses less digits than its factorization.

3142205125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 3142205125 is about 56055.3755227810. The cubic root of 3142205125 is about 1464.6870582250.

Adding to 3142205125 its reverse (5215022413), we get a palindrome (8357227538).

The spelling of 3142205125 in words is "three billion, one hundred forty-two million, two hundred five thousand, one hundred twenty-five".

Divisors: 1 5 25 113 125 149 565 745 1493 2825 3725 7465 14125 16837 18625 37325 84185 168709 186625 222457 420925 843545 1112285 2104625 4217725 5561425 21088625 25137641 27807125 125688205 628441025 3142205125