Search a number
-
+
7930390 = 2513531151
BaseRepresentation
bin11110010000001000010110
3112220220110011
4132100020112
54012233030
6441550434
7124256446
oct36201026
915826404
107930390
114527246
1227a541a
131848850
1410a6126
15a69b2a
hex790216

7930390 has 32 divisors (see below), whose sum is σ = 15676416. Its totient is φ = 2870400.

The previous prime is 7930387. The next prime is 7930393. The reversal of 7930390 is 930397.

It is an interprime number because it is at equal distance from previous prime (7930387) and next prime (7930393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7930393) 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, 6315 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (489888).

Almost surely, 27930390 is an apocalyptic number.

7930390 is a deficient number, since it is larger than the sum of its proper divisors (7746026).

7930390 is a wasteful number, since it uses less digits than its factorization.

7930390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 5103, while the sum is 31.

The square root of 7930390 is about 2816.0948137447. The cubic root of 7930390 is about 199.4182260026.

The spelling of 7930390 in words is "seven million, nine hundred thirty thousand, three hundred ninety".

Divisors: 1 2 5 10 13 26 53 65 106 130 265 530 689 1151 1378 2302 3445 5755 6890 11510 14963 29926 61003 74815 122006 149630 305015 610030 793039 1586078 3965195 7930390