Search a number
-
+
30025007750 = 253139864029
BaseRepresentation
bin11011111101101000…
…010100001010000110
32212111111100102120002
4123331220110022012
5442442400222000
621443204041302
72112022232513
oct337550241206
985444312502
1030025007750
11118083747a1
12599b393232
132aa660c99a
14164b8b830a
15baae188d5
hex6fda14286

30025007750 has 32 divisors (see below), whose sum is σ = 56611245600. Its totient is φ = 11923586400.

The previous prime is 30025007741. The next prime is 30025007807. The reversal of 30025007750 is 5770052003.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 397265 + ... + 466764.

It is an arithmetic number, because the mean of its divisors is an integer number (1769101425).

Almost surely, 230025007750 is an apocalyptic number.

30025007750 is a deficient number, since it is larger than the sum of its proper divisors (26586237850).

30025007750 is a wasteful number, since it uses less digits than its factorization.

30025007750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864185 (or 864175 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 29.

Adding to 30025007750 its reverse (5770052003), we get a palindrome (35795059753).

The spelling of 30025007750 in words is "thirty billion, twenty-five million, seven thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 139 250 278 695 1390 3475 6950 17375 34750 864029 1728058 4320145 8640290 21600725 43201450 108003625 120100031 216007250 240200062 600500155 1201000310 3002500775 6005001550 15012503875 30025007750