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220245518 = 21037191487
BaseRepresentation
bin11010010000010…
…10111000001110
3120100102122001102
431020022320032
5422340324033
633504343102
75313025133
oct1510127016
9510378042
10220245518
11103360799
1261914a92
13368253bc
142137258a
1514507de8
hexd20ae0e

220245518 has 16 divisors (see below), whose sum is σ = 334264320. Its totient is φ = 108828696.

The previous prime is 220245503. The next prime is 220245533. The reversal of 220245518 is 815542022.

It is an interprime number because it is at equal distance from previous prime (220245503) and next prime (220245533).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147371 + ... + 148857.

It is an arithmetic number, because the mean of its divisors is an integer number (20891520).

Almost surely, 2220245518 is an apocalyptic number.

220245518 is a deficient number, since it is larger than the sum of its proper divisors (114018802).

220245518 is a wasteful number, since it uses less digits than its factorization.

220245518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 220245518 is about 14840.6710764709. The cubic root of 220245518 is about 603.9055577232.

The spelling of 220245518 in words is "two hundred twenty million, two hundred forty-five thousand, five hundred eighteen".

Divisors: 1 2 103 206 719 1438 1487 2974 74057 148114 153161 306322 1069153 2138306 110122759 220245518