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13531200501 = 3721347791907
BaseRepresentation
bin11001001101000010…
…11011101111110101
31021221000100012120010
430212201123233311
5210202441404001
610114404330433
7656213210100
oct144641335765
937830305503
1013531200501
115814012235
1227576a3a19
13137845c320
14925123737
15542dce8d6
hex32685bbf5

13531200501 has 96 divisors (see below), whose sum is σ = 23386890240. Its totient is φ = 6893437824.

The previous prime is 13531200497. The next prime is 13531200511. The reversal of 13531200501 is 10500213531.

It is not a de Polignac number, because 13531200501 - 22 = 13531200497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531200511) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7094590 + ... + 7096496.

It is an arithmetic number, because the mean of its divisors is an integer number (243613440).

Almost surely, 213531200501 is an apocalyptic number.

It is an amenable number.

13531200501 is a deficient number, since it is larger than the sum of its proper divisors (9855689739).

13531200501 is a wasteful number, since it uses less digits than its factorization.

13531200501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The spelling of 13531200501 in words is "thirteen billion, five hundred thirty-one million, two hundred thousand, five hundred one".

Divisors: 1 3 7 13 21 39 47 49 79 91 141 147 237 273 329 553 611 637 987 1027 1659 1833 1907 1911 2303 3081 3713 3871 4277 5721 6909 7189 11139 11613 12831 13349 21567 24791 25991 29939 40047 48269 50323 74373 77973 89629 89817 93443 144807 150653 150969 173537 181937 268887 280329 337883 451959 520611 545811 627403 1013649 1054571 1165177 1214759 1882209 1958489 2365181 3163713 3495531 3644277 4391821 5875467 7080691 7095543 7381997 8156239 13175463 13709423 21242073 22145991 24468717 41128269 49564837 57093673 92048983 95965961 148694511 171281019 276146949 287897883 346953859 644342881 1040861577 1933028643 4510400167 13531200501