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1030159081 = 71719673677
BaseRepresentation
bin111101011001101…
…111101011101001
32122210102111121001
4331121233223221
54102210042311
6250115515001
734346131150
oct7531575351
92583374531
101030159081
11489552846
12248bb8a61
131355696b3
149ab5c597
156068c4c1
hex3d66fae9

1030159081 has 32 divisors (see below), whose sum is σ = 1316079360. Its totient is φ = 784982016.

The previous prime is 1030159063. The next prime is 1030159099. The reversal of 1030159081 is 1809510301.

It is an interprime number because it is at equal distance from previous prime (1030159063) and next prime (1030159099).

It is not a de Polignac number, because 1030159081 - 25 = 1030159049 is a prime.

It is a super-2 number, since 2×10301590812 = 2122455464333529122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030159001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1521315 + ... + 1521991.

It is an arithmetic number, because the mean of its divisors is an integer number (41127480).

Almost surely, 21030159081 is an apocalyptic number.

It is an amenable number.

1030159081 is a deficient number, since it is larger than the sum of its proper divisors (285920279).

1030159081 is a wasteful number, since it uses less digits than its factorization.

1030159081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 1030159081 is about 32096.0913663954. The cubic root of 1030159081 is about 1009.9536236589.

Adding to 1030159081 its reverse (1809510301), we get a palindrome (2839669382).

The spelling of 1030159081 in words is "one billion, thirty million, one hundred fifty-nine thousand, eighty-one".

Divisors: 1 7 17 19 119 133 323 673 677 2261 4711 4739 11441 11509 12787 12863 80087 80563 89509 90041 217379 218671 455621 1521653 1530697 3189347 7745557 8656799 54218899 60597593 147165583 1030159081