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214468437 = 31572831609
BaseRepresentation
bin11001100100010…
…00011101010101
3112221120010101110
430302020131111
5414400442222
633140445233
75212644261
oct1462103525
9487503343
10214468437
11100075347
125b9a9819
1335581a01
14206ab0a1
1513c6630c
hexcc88755

214468437 has 16 divisors (see below), whose sum is σ = 288975680. Its totient is φ = 141478272.

The previous prime is 214468433. The next prime is 214468439. The reversal of 214468437 is 734864412.

It is not a de Polignac number, because 214468437 - 22 = 214468433 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 214468395 and 214468404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214468433) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 132489 + ... + 134097.

It is an arithmetic number, because the mean of its divisors is an integer number (18060980).

Almost surely, 2214468437 is an apocalyptic number.

It is an amenable number.

214468437 is a deficient number, since it is larger than the sum of its proper divisors (74507243).

214468437 is a wasteful number, since it uses less digits than its factorization.

214468437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its digits is 129024, while the sum is 39.

The square root of 214468437 is about 14644.7409331814. The cubic root of 214468437 is about 598.5785211002.

The spelling of 214468437 in words is "two hundred fourteen million, four hundred sixty-eight thousand, four hundred thirty-seven".

Divisors: 1 3 157 283 471 849 1609 4827 44431 133293 252613 455347 757839 1366041 71489479 214468437