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12190783793 = 17717104929
BaseRepresentation
bin10110101101010000…
…01001100100110001
31011110121002222111212
423112220021210301
5144431320040133
65333402445505
7611045644466
oct132650114461
934417088455
1012190783793
11519641a331
122442803895
1311c3842c46
148390c166d
154b53a9148
hex2d6a09931

12190783793 has 4 divisors (see below), whose sum is σ = 12907888740. Its totient is φ = 11473678848.

The previous prime is 12190783789. The next prime is 12190783837. The reversal of 12190783793 is 39738709121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39738709121 = 72754661223.

It can be written as a sum of positive squares in 2 ways, for example, as 11373795904 + 816987889 = 106648^2 + 28583^2 .

It is a cyclic number.

It is not a de Polignac number, because 12190783793 - 22 = 12190783789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12190783733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358552448 + ... + 358552481.

It is an arithmetic number, because the mean of its divisors is an integer number (3226972185).

Almost surely, 212190783793 is an apocalyptic number.

It is an amenable number.

12190783793 is a deficient number, since it is larger than the sum of its proper divisors (717104947).

12190783793 is an equidigital number, since it uses as much as digits as its factorization.

12190783793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717104946.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 12190783793 in words is "twelve billion, one hundred ninety million, seven hundred eighty-three thousand, seven hundred ninety-three".

Divisors: 1 17 717104929 12190783793