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214886925 = 3452112877
BaseRepresentation
bin11001100111011…
…10101000001101
3112222100101110000
430303232220031
5420002340200
633153434513
75216336331
oct1463565015
9488311400
10214886925
11100330800
125bb6ba39
133569a336
14207797c1
1513cea300
hexcceea0d

214886925 has 90 divisors (see below), whose sum is σ = 438019274. Its totient is φ = 104068800.

The previous prime is 214886891. The next prime is 214886939. The reversal of 214886925 is 529688412.

It can be written as a sum of positive squares in 3 ways, for example, as 38900169 + 175986756 = 6237^2 + 13266^2 .

It is not a de Polignac number, because 214886925 - 27 = 214886797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 244587 + ... + 245463.

Almost surely, 2214886925 is an apocalyptic number.

214886925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214886925 is an abundant number, since it is smaller than the sum of its proper divisors (223132349).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214886925 is a wasteful number, since it uses less digits than its factorization.

214886925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 896 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 214886925 is about 14659.0219660112. The cubic root of 214886925 is about 598.9675996012.

The spelling of 214886925 in words is "two hundred fourteen million, eight hundred eighty-six thousand, nine hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 27 33 45 55 75 81 99 121 135 165 225 275 297 363 405 495 605 675 825 877 891 1089 1485 1815 2025 2475 2631 3025 3267 4385 4455 5445 7425 7893 9075 9647 9801 13155 16335 21925 22275 23679 27225 28941 39465 48235 49005 65775 71037 81675 86823 106117 118395 144705 197325 241175 245025 260469 318351 355185 434115 530585 591975 723525 781407 955053 1302345 1591755 1775925 2170575 2652925 2865159 3907035 4775265 6511725 7958775 8595477 14325795 19535175 23876325 42977385 71628975 214886925