Search a number
-
+
28758728590030 = 2510128473988703
BaseRepresentation
bin1101000100111111010011…
…10011010100001011001110
310202211022022020112210102001
412202133221303110023032
512232140334004340110
6141055324425022514
76025515050445565
oct642375163241316
9122738266483361
1028758728590030
11918856560688a
123285774024a3a
131307c235672ca
14715d03896bdc
1534d131bb263a
hex1a27e9cd42ce

28758728590030 has 16 divisors (see below), whose sum is σ = 52278243260544. Its totient is φ = 11389595480800.

The previous prime is 28758728589979. The next prime is 28758728590103. The reversal of 28758728590030 is 3009582785782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14236993342 + ... + 14236995361.

It is an arithmetic number, because the mean of its divisors is an integer number (3267390203784).

Almost surely, 228758728590030 is an apocalyptic number.

28758728590030 is a deficient number, since it is larger than the sum of its proper divisors (23519514670514).

28758728590030 is a wasteful number, since it uses less digits than its factorization.

28758728590030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28473988811.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 28758728590030 in words is "twenty-eight trillion, seven hundred fifty-eight billion, seven hundred twenty-eight million, five hundred ninety thousand, thirty".

Divisors: 1 2 5 10 101 202 505 1010 28473988703 56947977406 142369943515 284739887030 2875872859003 5751745718006 14379364295015 28758728590030