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220398242 = 2677322531
BaseRepresentation
bin11010010001100…
…00001010100010
3120100201101112212
431020300022202
5422410220432
633511522122
75314232321
oct1510601242
9510641485
10220398242
11103455509
1261989342
1336879a7c
14213b20b8
15145382b2
hexd2302a2

220398242 has 16 divisors (see below), whose sum is σ = 340143072. Its totient is φ = 107062560.

The previous prime is 220398209. The next prime is 220398253. The reversal of 220398242 is 242893022.

It is a junction number, because it is equal to n+sod(n) for n = 220398199 and 220398208.

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, 1484 + ... + 21047.

It is an arithmetic number, because the mean of its divisors is an integer number (21258942).

Almost surely, 2220398242 is an apocalyptic number.

220398242 is a deficient number, since it is larger than the sum of its proper divisors (119744830).

220398242 is a wasteful number, since it uses less digits than its factorization.

220398242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22673.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 220398242 is about 14845.8156394319. The cubic root of 220398242 is about 604.0451134381.

The spelling of 220398242 in words is "two hundred twenty million, three hundred ninety-eight thousand, two hundred forty-two".

Divisors: 1 2 67 73 134 146 4891 9782 22531 45062 1509577 1644763 3019154 3289526 110199121 220398242