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1030020001 = 1922853241
BaseRepresentation
bin111101011001001…
…101101110100001
32122210011102210221
4331121031232201
54102141120001
6250112523041
734345011523
oct7531155641
92583142727
101030020001
114894682aa
12248b50481
1313551b2ba
149ab23a13
15606611a1
hex3d64dba1

1030020001 has 6 divisors (see below), whose sum is σ = 1087085202. Its totient is φ = 975808080.

The previous prime is 1030019989. The next prime is 1030020007. The reversal of 1030020001 is 1000200301.

It can be written as a sum of positive squares in only one way, i.e., 900060001 + 129960000 = 30001^2 + 11400^2 .

It is a de Polignac number, because none of the positive numbers 2k-1030020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030020007) 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 5 ways as a sum of consecutive naturals, for example, 1426260 + ... + 1426981.

It is an arithmetic number, because the mean of its divisors is an integer number (181180867).

Almost surely, 21030020001 is an apocalyptic number.

It is an amenable number.

1030020001 is a deficient number, since it is larger than the sum of its proper divisors (57065201).

1030020001 is an equidigital number, since it uses as much as digits as its factorization.

1030020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853279 (or 2853260 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1030020001 is about 32093.9246743056. The cubic root of 1030020001 is about 1009.9081709146.

Adding to 1030020001 its reverse (1000200301), we get a palindrome (2030220302).

The spelling of 1030020001 in words is "one billion, thirty million, twenty thousand, one".

Divisors: 1 19 361 2853241 54211579 1030020001