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12901404 = 22329131283
BaseRepresentation
bin110001001101…
…110000011100
3220021110101210
4301031300130
511300321104
61140304420
7214442265
oct61156034
926243353
1012901404
11731201a
1243a2110
132899389
1419db96c
1511ec989
hexc4dc1c

12901404 has 48 divisors (see below), whose sum is σ = 31489920. Its totient is φ = 4105920.

The previous prime is 12901403. The next prime is 12901409. The reversal of 12901404 is 40410921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12901403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45447 + ... + 45729.

It is an arithmetic number, because the mean of its divisors is an integer number (656040).

Almost surely, 212901404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12901404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15744960).

12901404 is an abundant number, since it is smaller than the sum of its proper divisors (18588516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12901404 is a wasteful number, since it uses less digits than its factorization.

12901404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12901404 is about 3591.8524468580. The cubic root of 12901404 is about 234.5375180733.

The spelling of 12901404 in words is "twelve million, nine hundred one thousand, four hundred four".

Divisors: 1 2 3 4 6 12 29 58 87 116 131 174 262 283 348 393 524 566 786 849 1132 1572 1698 3396 3799 7598 8207 11397 15196 16414 22794 24621 32828 37073 45588 49242 74146 98484 111219 148292 222438 444876 1075117 2150234 3225351 4300468 6450702 12901404