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220242542 = 2138470867
BaseRepresentation
bin11010010000010…
…10001001101110
3120100102110222012
431020022021232
5422340230132
633504321222
75313013352
oct1510121156
9510373865
10220242542
11103359533
1261913212
1336823c40
1421371462
15145070b2
hexd20a26e

220242542 has 8 divisors (see below), whose sum is σ = 355776456. Its totient is φ = 101650392.

The previous prime is 220242527. The next prime is 220242557. The reversal of 220242542 is 245242022.

220242542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220242527) and next prime (220242557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235408 + ... + 4235459.

It is an arithmetic number, because the mean of its divisors is an integer number (44472057).

Almost surely, 2220242542 is an apocalyptic number.

220242542 is a deficient number, since it is larger than the sum of its proper divisors (135533914).

220242542 is a wasteful number, since it uses less digits than its factorization.

220242542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470882.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 220242542 is about 14840.5708111245. The cubic root of 220242542 is about 603.9028376814.

Adding to 220242542 its reverse (245242022), we get a palindrome (465484564).

It can be divided in two parts, 2202 and 42542, that added together give a palindrome (44744).

The spelling of 220242542 in words is "two hundred twenty million, two hundred forty-two thousand, five hundred forty-two".

Divisors: 1 2 13 26 8470867 16941734 110121271 220242542