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214291025 = 52131934703
BaseRepresentation
bin11001100010111…
…01001001010001
3112221020010000122
430301131021101
5414324303100
633133000025
75211305114
oct1461351121
9487203018
10214291025
11aaa64023
125b923015
133551c030
142066257b
1513c2d985
hexcc5d251

214291025 has 24 divisors (see below), whose sum is σ = 301230720. Its totient is φ = 149912640.

The previous prime is 214291019. The next prime is 214291039. The reversal of 214291025 is 520192412.

It is a de Polignac number, because none of the positive numbers 2k-214291025 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214290985 and 214291003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11177 + ... + 23526.

It is an arithmetic number, because the mean of its divisors is an integer number (12551280).

Almost surely, 2214291025 is an apocalyptic number.

214291025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214291025 is a deficient number, since it is larger than the sum of its proper divisors (86939695).

214291025 is a wasteful number, since it uses less digits than its factorization.

214291025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34745 (or 34740 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 214291025 is about 14638.6824885302. The cubic root of 214291025 is about 598.4134240667.

The spelling of 214291025 in words is "two hundred fourteen million, two hundred ninety-one thousand, twenty-five".

Divisors: 1 5 13 19 25 65 95 247 325 475 1235 6175 34703 173515 451139 659357 867575 2255695 3296785 8571641 11278475 16483925 42858205 214291025