Base | Representation |
---|---|
bin | 101111111110010111… |
… | …001100000110100001 |
3 | 11220221222011102202210 |
4 | 233332113030012201 |
5 | 1320444101211001 |
6 | 35355255432333 |
7 | 3502342616601 |
oct | 577627140641 |
9 | 156858142683 |
10 | 51512132001 |
11 | 1a93428a220 |
12 | 9b973856a9 |
13 | 4b1c11c0a5 |
14 | 26c94b0c01 |
15 | 15174d8dd6 |
hex | bfe5cc1a1 |
51512132001 has 8 divisors (see below), whose sum is σ = 74926737504. Its totient is φ = 31219473920.
The previous prime is 51512131973. The next prime is 51512132011. The reversal of 51512132001 is 10023121515.
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 51512132001 - 25 = 51512131969 is a prime.
It is not an unprimeable number, because it can be changed into a prime (51512132011) 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, 780486816 + ... + 780486881.
It is an arithmetic number, because the mean of its divisors is an integer number (9365842188).
Almost surely, 251512132001 is an apocalyptic number.
It is an amenable number.
51512132001 is a deficient number, since it is larger than the sum of its proper divisors (23414605503).
51512132001 is a wasteful number, since it uses less digits than its factorization.
51512132001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1560973711.
The product of its (nonzero) digits is 300, while the sum is 21.
Adding to 51512132001 its reverse (10023121515), we get a palindrome (61535253516).
The spelling of 51512132001 in words is "fifty-one billion, five hundred twelve million, one hundred thirty-two thousand, one".
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