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13220301044 = 2231106615331
BaseRepresentation
bin11000100111111110…
…11100100011110100
31021010100022212200102
430103333130203310
5204033344113134
610023500533232
7645416463506
oct142377344364
937110285612
1013220301044
115674573935
12268b551218
131328c16452
148d5b13d76
1552596b37e
hex313fdc8f4

13220301044 has 12 divisors (see below), whose sum is σ = 23881834368. Its totient is φ = 6396919800.

The previous prime is 13220301037. The next prime is 13220301049. The reversal of 13220301044 is 44010302231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220301049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53307542 + ... + 53307789.

It is an arithmetic number, because the mean of its divisors is an integer number (1990152864).

Almost surely, 213220301044 is an apocalyptic number.

It is an amenable number.

13220301044 is a deficient number, since it is larger than the sum of its proper divisors (10661533324).

13220301044 is a wasteful number, since it uses less digits than its factorization.

13220301044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106615366 (or 106615364 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13220301044 its reverse (44010302231), we get a palindrome (57230603275).

The spelling of 13220301044 in words is "thirteen billion, two hundred twenty million, three hundred one thousand, forty-four".

Divisors: 1 2 4 31 62 124 106615331 213230662 426461324 3305075261 6610150522 13220301044