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1930105007 = 23197342533
BaseRepresentation
bin111001100001011…
…0001000010101111
311222111211111022122
41303002301002233
512423101330012
6515304503155
765554423205
oct16302610257
94874744278
101930105007
11900548506
1245a47aabb
13249b4458c
141444a3075
15b46a7e72
hex730b10af

1930105007 has 8 divisors (see below), whose sum is σ = 2015090784. Its totient is φ = 1845208288.

The previous prime is 1930105003. The next prime is 1930105033. The reversal of 1930105007 is 7005010391.

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

It is a cyclic number.

It is not a de Polignac number, because 1930105007 - 22 = 1930105003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930105003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24113 + ... + 66645.

It is an arithmetic number, because the mean of its divisors is an integer number (251886348).

Almost surely, 21930105007 is an apocalyptic number.

1930105007 is a deficient number, since it is larger than the sum of its proper divisors (84985777).

1930105007 is a wasteful number, since it uses less digits than its factorization.

1930105007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44529.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 1930105007 is about 43932.9603714569. The cubic root of 1930105007 is about 1245.0696470234.

Adding to 1930105007 its reverse (7005010391), we get a palindrome (8935115398).

The spelling of 1930105007 in words is "one billion, nine hundred thirty million, one hundred five thousand, seven".

Divisors: 1 23 1973 42533 45379 978259 83917609 1930105007