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1930504801 = 2536776103
BaseRepresentation
bin111001100010001…
…0010101001100001
311222112120210201211
41303010102221201
512423202123201
6515321230121
765561006611
oct16304225141
94875523654
101930504801
119007a0915
1245a632341
13249c54544
14144568a41
15b4736651
hex73112a61

1930504801 has 4 divisors (see below), whose sum is σ = 1930606272. Its totient is φ = 1930403332.

The previous prime is 1930504739. The next prime is 1930504831. The reversal of 1930504801 is 1084050391.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1084050391 = 3691293701.

It is a cyclic number.

It is not a de Polignac number, because 1930504801 - 213 = 1930496609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1930504831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12685 + ... + 63418.

It is an arithmetic number, because the mean of its divisors is an integer number (482651568).

Almost surely, 21930504801 is an apocalyptic number.

It is an amenable number.

1930504801 is a deficient number, since it is larger than the sum of its proper divisors (101471).

1930504801 is an equidigital number, since it uses as much as digits as its factorization.

1930504801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101470.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1930504801 is about 43937.5101820756. The cubic root of 1930504801 is about 1245.1556072877.

The spelling of 1930504801 in words is "one billion, nine hundred thirty million, five hundred four thousand, eight hundred one".

Divisors: 1 25367 76103 1930504801