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12055609193 = 19634505747
BaseRepresentation
bin10110011101001000…
…11111111101101001
31011010011202101211012
423032210133331221
5144142213443233
65312133313305
7604514662445
oct131644377551
934104671735
1012055609193
115127093691
122405495835
1311a1835084
14825175825
154a85a7548
hex2ce91ff69

12055609193 has 4 divisors (see below), whose sum is σ = 12690114960. Its totient is φ = 11421103428.

The previous prime is 12055609133. The next prime is 12055609201. The reversal of 12055609193 is 39190655021.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 39190655021 = 75598665003.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12055609193 is a prime.

It is a super-2 number, since 2×120556091932 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12055609193.

It is not an unprimeable number, because it can be changed into a prime (12055609133) 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, 317252855 + ... + 317252892.

It is an arithmetic number, because the mean of its divisors is an integer number (3172528740).

Almost surely, 212055609193 is an apocalyptic number.

It is an amenable number.

12055609193 is a deficient number, since it is larger than the sum of its proper divisors (634505767).

12055609193 is an equidigital number, since it uses as much as digits as its factorization.

12055609193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634505766.

The product of its (nonzero) digits is 72900, while the sum is 41.

The spelling of 12055609193 in words is "twelve billion, fifty-five million, six hundred nine thousand, one hundred ninety-three".

Divisors: 1 19 634505747 12055609193