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12197000837 = 712491395059
BaseRepresentation
bin10110101101111111…
…10111011010000101
31011111000210211200202
423112333313122011
5144434413011322
65334144020245
7611152540130
oct132677673205
934430724622
1012197000837
11519998628a
122444901685
1311c4c0b978
14839c5d217
154b5bd6292
hex2d6ff7685

12197000837 has 8 divisors (see below), whose sum is σ = 13950600000. Its totient is φ = 10446194304.

The previous prime is 12197000831. The next prime is 12197000891. The reversal of 12197000837 is 73800079121.

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

It is not a de Polignac number, because 12197000837 - 24 = 12197000821 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 12197000837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197000831) 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, 688787 + ... + 706272.

It is an arithmetic number, because the mean of its divisors is an integer number (1743825000).

Almost surely, 212197000837 is an apocalyptic number.

It is an amenable number.

12197000837 is a deficient number, since it is larger than the sum of its proper divisors (1753599163).

12197000837 is a wasteful number, since it uses less digits than its factorization.

12197000837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396315.

The product of its (nonzero) digits is 21168, while the sum is 38.

Adding to 12197000837 its reverse (73800079121), we get a palindrome (85997079958).

The spelling of 12197000837 in words is "twelve billion, one hundred ninety-seven million, eight hundred thirty-seven", and thus it is an aban number.

Divisors: 1 7 1249 8743 1395059 9765413 1742428691 12197000837