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12381097246 = 2721721135221
BaseRepresentation
bin10111000011111100…
…01000110100011110
31011221212012220111021
423201332020310132
5200324030102441
65404321514354
7615546406300
oct134176106436
934855186437
1012381097246
115283896681
1224964a29ba
1312240b825b
148564a1970
154c6e4d3d1
hex2e1f88d1e

12381097246 has 48 divisors (see below), whose sum is σ = 22983622992. Its totient is φ = 4970246400.

The previous prime is 12381097241. The next prime is 12381097279. The reversal of 12381097246 is 64279018321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381097241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333916 + ... + 369136.

It is an arithmetic number, because the mean of its divisors is an integer number (478825479).

Almost surely, 212381097246 is an apocalyptic number.

12381097246 is a deficient number, since it is larger than the sum of its proper divisors (10602525746).

12381097246 is a wasteful number, since it uses less digits than its factorization.

12381097246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35465 (or 35458 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 12381097246 in words is "twelve billion, three hundred eighty-one million, ninety-seven thousand, two hundred forty-six".

Divisors: 1 2 7 14 17 34 49 98 119 211 238 422 833 1477 1666 2954 3587 7174 10339 20678 25109 35221 50218 70442 175763 246547 351526 493094 598757 1197514 1725829 3451658 4191299 7431631 8382598 14863262 29339093 52021417 58678186 104042834 126337727 252675454 364149919 728299838 884364089 1768728178 6190548623 12381097246