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214853977 = 13149110921
BaseRepresentation
bin11001100111001…
…10100101011001
3112222021201020201
430303212211121
5420000311402
633153022201
75216141302
oct1463464531
9488251221
10214853977
11100308a78
125bb54961
1335688340
142076b7a9
1513ce0687
hexcce6959

214853977 has 8 divisors (see below), whose sum is σ = 232936200. Its totient is φ = 196993920.

The previous prime is 214853959. The next prime is 214853999. The reversal of 214853977 is 779358412.

It can be written as a sum of positive squares in 4 ways, for example, as 34327881 + 180526096 = 5859^2 + 13436^2 .

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 214853977 - 215 = 214821209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214853917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53524 + ... + 57397.

It is an arithmetic number, because the mean of its divisors is an integer number (29117025).

Almost surely, 2214853977 is an apocalyptic number.

It is an amenable number.

214853977 is a deficient number, since it is larger than the sum of its proper divisors (18082223).

214853977 is a wasteful number, since it uses less digits than its factorization.

214853977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111083.

The product of its digits is 423360, while the sum is 46.

The square root of 214853977 is about 14657.8981098928. The cubic root of 214853977 is about 598.9369853713.

The spelling of 214853977 in words is "two hundred fourteen million, eight hundred fifty-three thousand, nine hundred seventy-seven".

Divisors: 1 13 149 1937 110921 1441973 16527229 214853977