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1930030201 = 11175457291
BaseRepresentation
bin111001100001001…
…1110110001111001
311222111200200201001
41303002132301321
512423041431301
6515303125001
765553662131
oct16302366171
94874620631
101930030201
119004a7290
1245a443761
13249b19508
14144483ac1
15b4690c01
hex7309ec79

1930030201 has 4 divisors (see below), whose sum is σ = 2105487504. Its totient is φ = 1754572900.

The previous prime is 1930030199. The next prime is 1930030229. The reversal of 1930030201 is 1020300391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1930030201 - 21 = 1930030199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1930030261) 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, 87728635 + ... + 87728656.

It is an arithmetic number, because the mean of its divisors is an integer number (526371876).

Almost surely, 21930030201 is an apocalyptic number.

1930030201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1930030201 is a deficient number, since it is larger than the sum of its proper divisors (175457303).

1930030201 is a wasteful number, since it uses less digits than its factorization.

1930030201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175457302.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1930030201 is about 43932.1089978617. The cubic root of 1930030201 is about 1245.0535615629.

Adding to 1930030201 its reverse (1020300391), we get a palindrome (2950330592).

The spelling of 1930030201 in words is "one billion, nine hundred thirty million, thirty thousand, two hundred one".

Divisors: 1 11 175457291 1930030201