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51050133 = 32172389163
BaseRepresentation
bin1100001010111…
…1011010010101
310120001121121200
43002233122111
5101032101013
65022103113
71156630131
oct302573225
9116047550
1051050133
11268a87a2
121511aa99
13a7653a4
146acc3c1
154735e73
hex30af695

51050133 has 48 divisors (see below), whose sum is σ = 82892160. Its totient is φ = 30108672.

The previous prime is 51050101. The next prime is 51050143. The reversal of 51050133 is 33105015.

It is a happy number.

It is not a de Polignac number, because 51050133 - 25 = 51050101 is a prime.

It is a super-2 number, since 2×510501332 = 5212232158635378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313110 + ... + 313272.

It is an arithmetic number, because the mean of its divisors is an integer number (1726920).

Almost surely, 251050133 is an apocalyptic number.

It is an amenable number.

51050133 is a deficient number, since it is larger than the sum of its proper divisors (31842027).

51050133 is a wasteful number, since it uses less digits than its factorization.

51050133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 51050133 is about 7144.9375784537. The cubic root of 51050133 is about 370.9644500147.

Adding to 51050133 its reverse (33105015), we get a palindrome (84155148).

The spelling of 51050133 in words is "fifty-one million, fifty thousand, one hundred thirty-three".

Divisors: 1 3 9 17 23 51 69 89 153 163 207 267 391 489 801 1173 1467 1513 2047 2771 3519 3749 4539 6141 8313 11247 13617 14507 18423 24939 33741 34799 43521 63733 104397 130563 191199 246619 313191 333661 573597 739857 1000983 2219571 3002949 5672237 17016711 51050133