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12541398 = 232972077
BaseRepresentation
bin101111110101…
…110111010110
3212121011120020
4233311313112
511202311043
61124450010
7211412562
oct57656726
925534506
1012541398
1170965a1
124249906
1327a155c
1419466a2
15117ae83
hexbf5dd6

12541398 has 16 divisors (see below), whose sum is σ = 25948080. Its totient is φ = 4036256.

The previous prime is 12541381. The next prime is 12541411. The reversal of 12541398 is 89314521.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 35865 + ... + 36212.

It is an arithmetic number, because the mean of its divisors is an integer number (1621755).

Almost surely, 212541398 is an apocalyptic number.

12541398 is an abundant number, since it is smaller than the sum of its proper divisors (13406682).

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

12541398 is a wasteful number, since it uses less digits than its factorization.

12541398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72111.

The product of its digits is 8640, while the sum is 33.

The square root of 12541398 is about 3541.3836279059. The cubic root of 12541398 is about 232.3353626911.

The spelling of 12541398 in words is "twelve million, five hundred forty-one thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 29 58 87 174 72077 144154 216231 432462 2090233 4180466 6270699 12541398