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13020322553 = 711213165883
BaseRepresentation
bin11000010000001001…
…00101101011111001
31020121102000220202122
430020010211223321
5203131200310203
65551554411025
7640440626030
oct141004455371
936542026678
1013020322553
1155816a6057
122634590a75
1312c6668b94
148b7339717
15513118538
hex308125af9

13020322553 has 8 divisors (see below), whose sum is σ = 14881785408. Its totient is φ = 11159213904.

The previous prime is 13020322409. The next prime is 13020322583. The reversal of 13020322553 is 35522302031.

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

It is a cyclic number.

It is not a de Polignac number, because 13020322553 - 28 = 13020322297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13020322583) 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, 4451 + ... + 161432.

It is an arithmetic number, because the mean of its divisors is an integer number (1860223176).

Almost surely, 213020322553 is an apocalyptic number.

It is an amenable number.

13020322553 is a deficient number, since it is larger than the sum of its proper divisors (1861462855).

13020322553 is a wasteful number, since it uses less digits than its factorization.

13020322553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177103.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 13020322553 its reverse (35522302031), we get a palindrome (48542624584).

The spelling of 13020322553 in words is "thirteen billion, twenty million, three hundred twenty-two thousand, five hundred fifty-three".

Divisors: 1 7 11213 78491 165883 1161181 1860046079 13020322553