Search a number
-
+
851230028 = 2211413891213
BaseRepresentation
bin110010101111001…
…011110101001100
32012022201222002002
4302233023311030
53220403330103
6220244451432
730044223125
oct6257136514
92168658062
10851230028
113a75517a0
121b90a9b78
1310747c10c
14810a304c
154eae6488
hex32bcbd4c

851230028 has 48 divisors (see below), whose sum is σ = 1670366880. Its totient is φ = 376204800.

The previous prime is 851230013. The next prime is 851230057. The reversal of 851230028 is 820032158.

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, 701150 + ... + 702362.

It is an arithmetic number, because the mean of its divisors is an integer number (34799310).

Almost surely, 2851230028 is an apocalyptic number.

It is an amenable number.

851230028 is a deficient number, since it is larger than the sum of its proper divisors (819136852).

851230028 is a wasteful number, since it uses less digits than its factorization.

851230028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 851230028 is about 29175.8466543818. The cubic root of 851230028 is about 947.7249449790.

The spelling of 851230028 in words is "eight hundred fifty-one million, two hundred thirty thousand, twenty-eight".

Divisors: 1 2 4 11 22 41 44 82 164 389 451 778 902 1213 1556 1804 2426 4279 4852 8558 13343 15949 17116 26686 31898 49733 53372 63796 99466 175439 198932 350878 471857 547063 701756 943714 1094126 1887428 2188252 5190427 10380854 19346137 20761708 38692274 77384548 212807507 425615014 851230028