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12457141 = 171938567
BaseRepresentation
bin101111100001…
…010010110101
3212102212222121
4233201102311
511142112031
61122555541
7210612124
oct57412265
925385877
1012457141
117039264
124208bb1
1327720b8
141923abb
151161011
hexbe14b5

12457141 has 8 divisors (see below), whose sum is σ = 13884480. Its totient is φ = 11107008.

The previous prime is 12457127. The next prime is 12457157. The reversal of 12457141 is 14175421.

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

It is a cyclic number.

It is not a de Polignac number, because 12457141 - 27 = 12457013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18961 + ... + 19606.

It is an arithmetic number, because the mean of its divisors is an integer number (1735560).

Almost surely, 212457141 is an apocalyptic number.

It is an amenable number.

12457141 is a deficient number, since it is larger than the sum of its proper divisors (1427339).

12457141 is a wasteful number, since it uses less digits than its factorization.

12457141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38603.

The product of its digits is 1120, while the sum is 25.

The square root of 12457141 is about 3529.4675235792. The cubic root of 12457141 is about 231.8138928103.

The spelling of 12457141 in words is "twelve million, four hundred fifty-seven thousand, one hundred forty-one".

Divisors: 1 17 19 323 38567 655639 732773 12457141