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12401493 = 313317987
BaseRepresentation
bin101111010011…
…101101010101
3212100001122120
4233103231111
511133321433
61121450153
7210260646
oct57235525
925301576
1012401493
117000475
1241a0959
132752980
14190b6cd
15114e7b3
hexbd3b55

12401493 has 8 divisors (see below), whose sum is σ = 17807328. Its totient is φ = 7631664.

The previous prime is 12401491. The next prime is 12401497. The reversal of 12401493 is 39410421.

12401493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12401493 - 21 = 12401491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158955 + ... + 159032.

It is an arithmetic number, because the mean of its divisors is an integer number (2225916).

Almost surely, 212401493 is an apocalyptic number.

12401493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12401493 is a deficient number, since it is larger than the sum of its proper divisors (5405835).

12401493 is a wasteful number, since it uses less digits than its factorization.

12401493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318003.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12401493 is about 3521.5753577057. The cubic root of 12401493 is about 231.4681945461.

The spelling of 12401493 in words is "twelve million, four hundred one thousand, four hundred ninety-three".

Divisors: 1 3 13 39 317987 953961 4133831 12401493