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1223141242 = 223163163129
BaseRepresentation
bin100100011100111…
…1010011101111010
310011020120000100111
41020321322131322
510001111004432
6321212054534
742211346311
oct11071723572
93136500314
101223141242
11578482134
122a176444a
1316653761b
14b8635278
15725ac347
hex48e7a77a

1223141242 has 16 divisors (see below), whose sum is σ = 1926239040. Its totient is φ = 581388192.

The previous prime is 1223141237. The next prime is 1223141243. The reversal of 1223141242 is 2421413221.

It is not an unprimeable number, because it can be changed into a prime (1223141243) 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, 74067 + ... + 89062.

It is an arithmetic number, because the mean of its divisors is an integer number (120389940).

Almost surely, 21223141242 is an apocalyptic number.

1223141242 is a deficient number, since it is larger than the sum of its proper divisors (703097798).

1223141242 is a wasteful number, since it uses less digits than its factorization.

1223141242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163317.

The product of its digits is 768, while the sum is 22.

The square root of 1223141242 is about 34973.4362338047. The cubic root of 1223141242 is about 1069.4460235402.

Adding to 1223141242 its reverse (2421413221), we get a palindrome (3644554463).

The spelling of 1223141242 in words is "one billion, two hundred twenty-three million, one hundred forty-one thousand, two hundred forty-two".

Divisors: 1 2 23 46 163 326 3749 7498 163129 326258 3751967 7503934 26590027 53180054 611570621 1223141242