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195214427 = 516737781
BaseRepresentation
bin10111010001010…
…11110001011011
3111121022220211222
423220223301123
5344433330202
631212042255
74560203162
oct1350536133
9447286758
10195214427
11a0214541
125546338b
133159ccc5
141bcd83d9
15122114a2
hexba2bc5b

195214427 has 4 divisors (see below), whose sum is σ = 195257376. Its totient is φ = 195171480.

The previous prime is 195214387. The next prime is 195214433. The reversal of 195214427 is 724412591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195214427 - 212 = 195210331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195214477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13724 + ... + 24057.

It is an arithmetic number, because the mean of its divisors is an integer number (48814344).

Almost surely, 2195214427 is an apocalyptic number.

195214427 is a deficient number, since it is larger than the sum of its proper divisors (42949).

195214427 is an equidigital number, since it uses as much as digits as its factorization.

195214427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42948.

The product of its digits is 20160, while the sum is 35.

The square root of 195214427 is about 13971.9156524794. The cubic root of 195214427 is about 580.1014755070.

The spelling of 195214427 in words is "one hundred ninety-five million, two hundred fourteen thousand, four hundred twenty-seven".

Divisors: 1 5167 37781 195214427