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12545107 = 97283457
BaseRepresentation
bin101111110110…
…110001010011
3212121100122121
4233312301103
511202420412
61124515111
7211426441
oct57666123
925540577
1012545107
117099363
12424ba97
1327a3153
141947b91
15117c107
hexbf6c53

12545107 has 8 divisors (see below), whose sum is σ = 12747056. Its totient is φ = 12344832.

The previous prime is 12545089. The next prime is 12545129. The reversal of 12545107 is 70154521.

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 12545107 - 27 = 12544979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12545177) 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, 27223 + ... + 27679.

It is an arithmetic number, because the mean of its divisors is an integer number (1593382).

Almost surely, 212545107 is an apocalyptic number.

12545107 is a deficient number, since it is larger than the sum of its proper divisors (201949).

12545107 is an equidigital number, since it uses as much as digits as its factorization.

12545107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 12545107 is about 3541.9072545734. The cubic root of 12545107 is about 232.3582640966.

Adding to 12545107 its reverse (70154521), we get a palindrome (82699628).

The spelling of 12545107 in words is "twelve million, five hundred forty-five thousand, one hundred seven".

Divisors: 1 97 283 457 27451 44329 129331 12545107