Search a number
-
+
12378201 = 311375097
BaseRepresentation
bin101111001110…
…000001011001
3212021212200220
4233032001121
511132100301
61121150253
7210133023
oct57160131
925255626
1012378201
116a94a20
12418b389
1327451a4
141903013
151147936
hexbce059

12378201 has 8 divisors (see below), whose sum is σ = 18004704. Its totient is φ = 7501920.

The previous prime is 12378199. The next prime is 12378241. The reversal of 12378201 is 10287321.

12378201 is digitally balanced in base 2 and base 4, because in such bases 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 12378201 - 21 = 12378199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12378241) 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, 187516 + ... + 187581.

It is an arithmetic number, because the mean of its divisors is an integer number (2250588).

Almost surely, 212378201 is an apocalyptic number.

12378201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12378201 is a deficient number, since it is larger than the sum of its proper divisors (5626503).

12378201 is a wasteful number, since it uses less digits than its factorization.

12378201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375111.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12378201 is about 3518.2667607787. The cubic root of 12378201 is about 231.3231922201.

The spelling of 12378201 in words is "twelve million, three hundred seventy-eight thousand, two hundred one".

Divisors: 1 3 11 33 375097 1125291 4126067 12378201