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12975789974 = 277931337483
BaseRepresentation
bin11000001010110101…
…01101011110010110
31020111022020102112212
430011122231132112
5203033300234344
65543324113422
7636360252320
oct140532553626
936438212485
1012975789974
11555954a074
122621695872
1312ba376244
148b1466610
1550e26d79e
hex3056ad796

12975789974 has 32 divisors (see below), whose sum is σ = 22598353920. Its totient is φ = 5472971712.

The previous prime is 12975789949. The next prime is 12975789979. The reversal of 12975789974 is 47998757921.

It is a super-2 number, since 2×129757899742 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975789979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327437 + ... + 364919.

It is an arithmetic number, because the mean of its divisors is an integer number (706198560).

Almost surely, 212975789974 is an apocalyptic number.

12975789974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12975789974 is a deficient number, since it is larger than the sum of its proper divisors (9622563946).

12975789974 is a wasteful number, since it uses less digits than its factorization.

12975789974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37884.

The product of its digits is 80015040, while the sum is 68.

The spelling of 12975789974 in words is "twelve billion, nine hundred seventy-five million, seven hundred eighty-nine thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 79 158 313 553 626 1106 2191 4382 24727 37483 49454 74966 173089 262381 346178 524762 2961157 5922314 11732179 20728099 23464358 41456198 82125253 164250506 926842141 1853684282 6487894987 12975789974