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51300205 = 5115915809
BaseRepresentation
bin1100001110110…
…0011101101101
310120112022122121
43003230131231
5101113101310
65031312541
71162021165
oct303543555
9116468577
1051300205
1126a59670
121521b751
13a822168
146b555a5
1547850da
hex30ec76d

51300205 has 16 divisors (see below), whose sum is σ = 68299200. Its totient is φ = 36674560.

The previous prime is 51300199. The next prime is 51300211. The reversal of 51300205 is 50200315.

It is an interprime number because it is at equal distance from previous prime (51300199) and next prime (51300211).

It is a de Polignac number, because none of the positive numbers 2k-51300205 is a prime.

It is a super-2 number, since 2×513002052 = 5263422066084050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4660 + ... + 11149.

It is an arithmetic number, because the mean of its divisors is an integer number (4268700).

Almost surely, 251300205 is an apocalyptic number.

51300205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51300205 is a deficient number, since it is larger than the sum of its proper divisors (16998995).

51300205 is a wasteful number, since it uses less digits than its factorization.

51300205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 51300205 is about 7162.4161426156. The cubic root of 51300205 is about 371.5691938305.

The spelling of 51300205 in words is "fifty-one million, three hundred thousand, two hundred five".

Divisors: 1 5 11 55 59 295 649 3245 15809 79045 173899 869495 932731 4663655 10260041 51300205