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12012247307 = 61196922087
BaseRepresentation
bin10110010111111110…
…00101100100001011
31011000011011101111102
423023333011210023
5144100113403212
65303544052015
7603450263114
oct131377054413
934004141442
1012012247307
115104667215
1223b2a6400b
131195862258
1481d4c920b
154a488e5c2
hex2cbfc590b

12012247307 has 4 divisors (see below), whose sum is σ = 12209169456. Its totient is φ = 11815325160.

The previous prime is 12012247301. The next prime is 12012247337. The reversal of 12012247307 is 70374221021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12012247307 - 210 = 12012246283 is a prime.

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 12012247307.

It is not an unprimeable number, because it can be changed into a prime (12012247301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98460983 + ... + 98461104.

It is an arithmetic number, because the mean of its divisors is an integer number (3052292364).

Almost surely, 212012247307 is an apocalyptic number.

12012247307 is a deficient number, since it is larger than the sum of its proper divisors (196922149).

12012247307 is an equidigital number, since it uses as much as digits as its factorization.

12012247307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196922148.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 12012247307 its reverse (70374221021), we get a palindrome (82386468328).

The spelling of 12012247307 in words is "twelve billion, twelve million, two hundred forty-seven thousand, three hundred seven".

Divisors: 1 61 196922087 12012247307