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12290061386 = 229320972801
BaseRepresentation
bin10110111001000101…
…10111010001001010
31011201111220210202202
423130202313101022
5200132223431021
65351310400202
7613362540521
oct133442672112
934644823682
1012290061386
115237468029
12246bb00062
13120b292995
148483654b8
154bde69a0b
hex2dc8b744a

12290061386 has 8 divisors (see below), whose sum is σ = 18498011364. Its totient is φ = 6124057600.

The previous prime is 12290061359. The next prime is 12290061461. The reversal of 12290061386 is 68316009221.

It is a happy number.

12290061386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9077325625 + 3212735761 = 95275^2 + 56681^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10485815 + ... + 10486986.

Almost surely, 212290061386 is an apocalyptic number.

12290061386 is a deficient number, since it is larger than the sum of its proper divisors (6207949978).

12290061386 is a wasteful number, since it uses less digits than its factorization.

12290061386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20973096.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 12290061386 in words is "twelve billion, two hundred ninety million, sixty-one thousand, three hundred eighty-six".

Divisors: 1 2 293 586 20972801 41945602 6145030693 12290061386