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220214397 = 31323245501
BaseRepresentation
bin11010010000000…
…11010001111101
3120100101001100210
431020003101331
5422333330042
633503543033
75312535324
oct1510032175
9510331323
10220214397
1110333a377
12618baa79
13368141a0
14213650bb
15144eda9c
hexd20347d

220214397 has 16 divisors (see below), whose sum is σ = 329954688. Its totient is φ = 129624000.

The previous prime is 220214377. The next prime is 220214399. The reversal of 220214397 is 793412022.

It is not a de Polignac number, because 220214397 - 210 = 220213373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220214399) 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, 121854 + ... + 123647.

It is an arithmetic number, because the mean of its divisors is an integer number (20622168).

Almost surely, 2220214397 is an apocalyptic number.

It is an amenable number.

220214397 is a deficient number, since it is larger than the sum of its proper divisors (109740291).

220214397 is a wasteful number, since it uses less digits than its factorization.

220214397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245540.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 220214397 is about 14839.6225356307. The cubic root of 220214397 is about 603.8771121498.

The spelling of 220214397 in words is "two hundred twenty million, two hundred fourteen thousand, three hundred ninety-seven".

Divisors: 1 3 13 23 39 69 299 897 245501 736503 3191513 5646523 9574539 16939569 73404799 220214397