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13050503121 = 329150005783
BaseRepresentation
bin11000010011101111…
…01101111111010001
31020200111211020201110
430021313231333101
5203211412044441
65554553323533
7641255306025
oct141167557721
936614736643
1013050503121
11559773a177
1226427065a9
1312cc9a50c6
148bb354385
15515acab16
hex309dedfd1

13050503121 has 8 divisors (see below), whose sum is σ = 18000694080. Its totient is φ = 8400323792.

The previous prime is 13050503107. The next prime is 13050503131. The reversal of 13050503121 is 12130505031.

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 13050503121 - 221 = 13048405969 is a prime.

It is a super-2 number, since 2×130505031212 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13050503131) 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, 75002805 + ... + 75002978.

It is an arithmetic number, because the mean of its divisors is an integer number (2250086760).

Almost surely, 213050503121 is an apocalyptic number.

It is an amenable number.

13050503121 is a deficient number, since it is larger than the sum of its proper divisors (4950190959).

13050503121 is a wasteful number, since it uses less digits than its factorization.

13050503121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150005815.

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

The spelling of 13050503121 in words is "thirteen billion, fifty million, five hundred three thousand, one hundred twenty-one".

Divisors: 1 3 29 87 150005783 450017349 4350167707 13050503121