Search a number
-
+
13052305305 = 3351317232827
BaseRepresentation
bin11000010011111101…
…00101111110011001
31020200122012210212000
430021332211332121
5203212342232210
65555100111213
7641306523144
oct141176457631
936618183760
1013052305305
115598760186
122643235509
1313001864a0
148bb6a305b
15515d34ac0
hex309fa5f99

13052305305 has 192 divisors, whose sum is σ = 27692824320. Its totient is φ = 5777823744.

The previous prime is 13052305261. The next prime is 13052305313. The reversal of 13052305305 is 50350325031.

13052305305 is a `hidden beast` number, since 1 + 3 + 0 + 52 + 305 + 305 = 666.

It is not a de Polignac number, because 13052305305 - 212 = 13052301209 is a prime.

It is a super-2 number, since 2×130523053052 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15782302 + ... + 15783128.

It is an arithmetic number, because the mean of its divisors is an integer number (144233460).

Almost surely, 213052305305 is an apocalyptic number.

13052305305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13052305305 is an abundant number, since it is smaller than the sum of its proper divisors (14640519015).

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

13052305305 is a wasteful number, since it uses less digits than its factorization.

13052305305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The spelling of 13052305305 in words is "thirteen billion, fifty-two million, three hundred five thousand, three hundred five".