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815224150 = 252133134007
BaseRepresentation
bin110000100101110…
…101010101010110
32002210222200022001
4300211311111112
53132144133100
6212521025514
726126201536
oct6045652526
92083880261
10815224150
11389199a74
121a902529a
13ccb83570
147a3ad4c6
154b882d6a
hex30975556

815224150 has 48 divisors (see below), whose sum is σ = 1638582624. Its totient is φ = 299969280.

The previous prime is 815224141. The next prime is 815224169. The reversal of 815224150 is 51422518.

815224150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201447 + ... + 205453.

It is an arithmetic number, because the mean of its divisors is an integer number (34137138).

Almost surely, 2815224150 is an apocalyptic number.

815224150 is an abundant number, since it is smaller than the sum of its proper divisors (823358474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

815224150 is a wasteful number, since it uses less digits than its factorization.

815224150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 815224150 is about 28552.1303933699. The cubic root of 815224150 is about 934.1694894833.

Adding to 815224150 its reverse (51422518), we get a palindrome (866646668).

The spelling of 815224150 in words is "eight hundred fifteen million, two hundred twenty-four thousand, one hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 313 325 626 650 1565 3130 4007 4069 7825 8014 8138 15650 20035 20345 40070 40690 52091 100175 101725 104182 200350 203450 260455 520910 1254191 1302275 2508382 2604550 6270955 12541910 16304483 31354775 32608966 62709550 81522415 163044830 407612075 815224150