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220112157 = 394777477
BaseRepresentation
bin11010001111010…
…10010100011101
3120100011212010010
431013222110131
5422322042112
633501433433
75311631256
oct1507522435
9510155103
10220112157
1110327a581
126186b879
13367a97a5
1421339b2d
15144cd63c
hexd1ea51d

220112157 has 8 divisors (see below), whose sum is σ = 293796576. Its totient is φ = 146584592.

The previous prime is 220112153. The next prime is 220112159. The reversal of 220112157 is 751211022.

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 220112157 - 22 = 220112153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112153) 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, 35898 + ... + 41579.

It is an arithmetic number, because the mean of its divisors is an integer number (36724572).

Almost surely, 2220112157 is an apocalyptic number.

It is an amenable number.

220112157 is a deficient number, since it is larger than the sum of its proper divisors (73684419).

220112157 is an equidigital number, since it uses as much as digits as its factorization.

220112157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78427.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 220112157 is about 14836.1773041441. The cubic root of 220112157 is about 603.7836427035.

Adding to 220112157 its reverse (751211022), we get a palindrome (971323179).

The spelling of 220112157 in words is "two hundred twenty million, one hundred twelve thousand, one hundred fifty-seven".

Divisors: 1 3 947 2841 77477 232431 73370719 220112157