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1223030042 = 213313741011
BaseRepresentation
bin100100011100101…
…1111010100011010
310011020100100210222
41020321133110122
510001043430132
6321205440042
742210404153
oct11071372432
93136310728
101223030042
11578406633
122a1710022
131664c8b20
14b860692a
1572589412
hex48e5f51a

1223030042 has 32 divisors (see below), whose sum is σ = 2094564864. Its totient is φ = 531489600.

The previous prime is 1223030033. The next prime is 1223030059. The reversal of 1223030042 is 2400303221.

It is a self number, because there is not a number n which added to its sum of digits gives 1223030042.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9317 + ... + 50327.

It is an arithmetic number, because the mean of its divisors is an integer number (65455152).

Almost surely, 21223030042 is an apocalyptic number.

1223030042 is a deficient number, since it is larger than the sum of its proper divisors (871534822).

1223030042 is a wasteful number, since it uses less digits than its factorization.

1223030042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41094.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1223030042 is about 34971.8464196559. The cubic root of 1223030042 is about 1069.4136135459.

Adding to 1223030042 its reverse (2400303221), we get a palindrome (3623333263).

The spelling of 1223030042 in words is "one billion, two hundred twenty-three million, thirty thousand, forty-two".

Divisors: 1 2 13 26 31 37 62 74 403 481 806 962 1147 2294 14911 29822 41011 82022 533143 1066286 1271341 1517407 2542682 3034814 16527433 19726291 33054866 39452582 47039617 94079234 611515021 1223030042