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220120147 = 1361277579
BaseRepresentation
bin11010001111011…
…00010001010011
3120100012021002001
431013230101103
5422322321042
633501534431
75311663462
oct1507542123
9510167061
10220120147
11103285585
1261874417
13367b0310
142133c9d9
15144d0bb7
hexd1ec453

220120147 has 8 divisors (see below), whose sum is σ = 240939440. Its totient is φ = 199856160.

The previous prime is 220120133. The next prime is 220120157. The reversal of 220120147 is 741021022.

It is a happy number.

220120147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220120147 - 211 = 220118099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220120127) 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, 137997 + ... + 139582.

It is an arithmetic number, because the mean of its divisors is an integer number (30117430).

Almost surely, 2220120147 is an apocalyptic number.

220120147 is a deficient number, since it is larger than the sum of its proper divisors (20819293).

220120147 is a wasteful number, since it uses less digits than its factorization.

220120147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277653.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 220120147 is about 14836.4465759157. The cubic root of 220120147 is about 603.7909483320.

Adding to 220120147 its reverse (741021022), we get a palindrome (961141169).

The spelling of 220120147 in words is "two hundred twenty million, one hundred twenty thousand, one hundred forty-seven".

Divisors: 1 13 61 793 277579 3608527 16932319 220120147