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12445973 = 31974139
BaseRepresentation
bin101111011110…
…100100010101
3212102022122222
4233132210111
511141232343
61122432125
7210534431
oct57364425
925368588
1012445973
117030931
124202645
132769ca7
14191d9c1
15115ca68
hexbde915

12445973 has 8 divisors (see below), whose sum is σ = 12983040. Its totient is φ = 11917440.

The previous prime is 12445957. The next prime is 12445997. The reversal of 12445973 is 37954421.

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 12445973 - 24 = 12445957 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 (12445913) 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, 938 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (1622880).

Almost surely, 212445973 is an apocalyptic number.

It is an amenable number.

12445973 is a deficient number, since it is larger than the sum of its proper divisors (537067).

12445973 is an equidigital number, since it uses as much as digits as its factorization.

12445973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267.

The product of its digits is 30240, while the sum is 35.

The square root of 12445973 is about 3527.8850604860. The cubic root of 12445973 is about 231.7445973061.

The spelling of 12445973 in words is "twelve million, four hundred forty-five thousand, nine hundred seventy-three".

Divisors: 1 31 97 3007 4139 128309 401483 12445973