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1052238020 = 22552611901
BaseRepresentation
bin111110101101111…
…110000011000100
32201022222020012112
4332231332003010
54123333104040
6252225040152
735034606221
oct7655760304
92638866175
101052238020
1149aa62aa9
12254486058
13139cca162
149da68948
156259e365
hex3eb7e0c4

1052238020 has 12 divisors (see below), whose sum is σ = 2209699884. Its totient is φ = 420895200.

The previous prime is 1052238013. The next prime is 1052238029. The reversal of 1052238020 is 208322501.

It can be written as a sum of positive squares in 2 ways, for example, as 157151296 + 895086724 = 12536^2 + 29918^2 .

It is a super-2 number, since 2×10522380202 = 2214409701467040800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1052238029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26305931 + ... + 26305970.

It is an arithmetic number, because the mean of its divisors is an integer number (184141657).

Almost surely, 21052238020 is an apocalyptic number.

1052238020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052238020 is an abundant number, since it is smaller than the sum of its proper divisors (1157461864).

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

1052238020 is a wasteful number, since it uses less digits than its factorization.

1052238020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52611910 (or 52611908 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1052238020 is about 32438.2185084200. The cubic root of 1052238020 is about 1017.1179762244.

The spelling of 1052238020 in words is "one billion, fifty-two million, two hundred thirty-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 52611901 105223802 210447604 263059505 526119010 1052238020