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13203052434 = 23311132379941
BaseRepresentation
bin11000100101111011…
…01001011110010010
31021002010212120001000
430102331221132102
5204014440134214
610022043122430
7645120044145
oct142275513622
937063776030
1013203052434
115665862790
122685813416
131325487480
148d370405c
155241b0809
hex312f69792

13203052434 has 256 divisors, whose sum is σ = 36462182400. Its totient is φ = 3484166400.

The previous prime is 13203052417. The next prime is 13203052451. The reversal of 13203052434 is 43425030231.

13203052434 is a `hidden beast` number, since 1 + 320 + 305 + 2 + 4 + 34 = 666.

It is an interprime number because it is at equal distance from previous prime (13203052417) and next prime (13203052451).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13203052398 and 13203052407.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14030404 + ... + 14031344.

It is an arithmetic number, because the mean of its divisors is an integer number (142430400).

Almost surely, 213203052434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13203052434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18231091200).

13203052434 is an abundant number, since it is smaller than the sum of its proper divisors (23259129966).

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

13203052434 is a wasteful number, since it uses less digits than its factorization.

13203052434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 13203052434 its reverse (43425030231), we get a palindrome (56628082665).

The spelling of 13203052434 in words is "thirteen billion, two hundred three million, fifty-two thousand, four hundred thirty-four".