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1220233242 = 231728014271
BaseRepresentation
bin100100010111011…
…0100100000011010
310011001002021022210
41020232310200122
54444334430432
6321025455550
742144545214
oct11056644032
93131067283
101220233242
11576876328
122a07a15b6
13165a59b07
14b80b95b4
15721d58cc
hex48bb481a

1220233242 has 32 divisors (see below), whose sum is σ = 2585551104. Its totient is φ = 382592000.

The previous prime is 1220233229. The next prime is 1220233277. The reversal of 1220233242 is 2423320221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283567 + ... + 287837.

It is an arithmetic number, because the mean of its divisors is an integer number (80798472).

Almost surely, 21220233242 is an apocalyptic number.

1220233242 is an abundant number, since it is smaller than the sum of its proper divisors (1365317862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220233242 is a wasteful number, since it uses less digits than its factorization.

1220233242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1220233242 is about 34931.8370830966. The cubic root of 1220233242 is about 1068.5978203485.

Adding to 1220233242 its reverse (2423320221), we get a palindrome (3643553463).

The spelling of 1220233242 in words is "one billion, two hundred twenty million, two hundred thirty-three thousand, two hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 2801 4271 5602 8403 8542 12813 16806 25626 47617 72607 95234 142851 145214 217821 285702 435642 11963071 23926142 35889213 71778426 203372207 406744414 610116621 1220233242