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1050000228 = 2232257113489
BaseRepresentation
bin111110100101011…
…011101101100100
32201011202112112100
4332211123231210
54122300001403
6252105052100
735006566104
oct7645335544
92634675470
101050000228
11499774792
12253787030
131396c5714
149d645204
15622ab2a3
hex3e95bb64

1050000228 has 36 divisors (see below), whose sum is σ = 2664518220. Its totient is φ = 348635136.

The previous prime is 1050000227. The next prime is 1050000229. The reversal of 1050000228 is 8220000501.

It is an interprime number because it is at equal distance from previous prime (1050000227) and next prime (1050000229).

It can be written as a sum of positive squares in 2 ways, for example, as 585252864 + 464747364 = 24192^2 + 21558^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10500002282 = 2205000957600103968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1050000228.

It is not an unprimeable number, because it can be changed into a prime (1050000227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47493 + ... + 65996.

It is an arithmetic number, because the mean of its divisors is an integer number (74014395).

Almost surely, 21050000228 is an apocalyptic number.

1050000228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1050000228 is an abundant number, since it is smaller than the sum of its proper divisors (1614517992).

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

1050000228 is a wasteful number, since it uses less digits than its factorization.

1050000228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113756 (or 113751 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1050000228 is about 32403.7070101555. The cubic root of 1050000228 is about 1016.3964303826.

Adding to 1050000228 its reverse (8220000501), we get a palindrome (9270000729).

The spelling of 1050000228 in words is "one billion, fifty million, two hundred twenty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 9 12 18 36 257 514 771 1028 1542 2313 3084 4626 9252 113489 226978 340467 453956 680934 1021401 1361868 2042802 4085604 29166673 58333346 87500019 116666692 175000038 262500057 350000076 525000114 1050000228