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1030381538 = 21074814867
BaseRepresentation
bin111101011010100…
…101111111100010
32122210211210202012
4331122211333202
54102234202123
6250124352522
734351045544
oct7532457742
92583753665
101030381538
1148969499a
122490a5742
13135616a24
149abb9694
15606d3378
hex3d6a5fe2

1030381538 has 8 divisors (see below), whose sum is σ = 1560017232. Its totient is φ = 510375796.

The previous prime is 1030381529. The next prime is 1030381549. The reversal of 1030381538 is 8351830301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10303815382 = 2123372227702490888, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2407220 + ... + 2407647.

It is an arithmetic number, because the mean of its divisors is an integer number (195002154).

Almost surely, 21030381538 is an apocalyptic number.

1030381538 is a deficient number, since it is larger than the sum of its proper divisors (529635694).

1030381538 is a wasteful number, since it uses less digits than its factorization.

1030381538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814976.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1030381538 is about 32099.5566636052. The cubic root of 1030381538 is about 1010.0263163420.

The spelling of 1030381538 in words is "one billion, thirty million, three hundred eighty-one thousand, five hundred thirty-eight".

Divisors: 1 2 107 214 4814867 9629734 515190769 1030381538