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12955445 = 517152417
BaseRepresentation
bin110001011010…
…111100110101
3220101012112022
4301122330311
511304033240
61141402525
7215055656
oct61327465
926335468
1012955445
117349688
124409445
1328b7b59
141a1352d
15120d9b5
hexc5af35

12955445 has 8 divisors (see below), whose sum is σ = 16461144. Its totient is φ = 9754624.

The previous prime is 12955421. The next prime is 12955471. The reversal of 12955445 is 54455921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 579121 + 12376324 = 761^2 + 3518^2 .

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 12955445 - 214 = 12939061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76124 + ... + 76293.

It is an arithmetic number, because the mean of its divisors is an integer number (2057643).

Almost surely, 212955445 is an apocalyptic number.

It is an amenable number.

12955445 is a deficient number, since it is larger than the sum of its proper divisors (3505699).

12955445 is a wasteful number, since it uses less digits than its factorization.

12955445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152439.

The product of its digits is 36000, while the sum is 35.

The square root of 12955445 is about 3599.3673055136. The cubic root of 12955445 is about 234.8645363842.

The spelling of 12955445 in words is "twelve million, nine hundred fifty-five thousand, four hundred forty-five".

Divisors: 1 5 17 85 152417 762085 2591089 12955445