Search a number
-
+
51088995 = 33517113197
BaseRepresentation
bin1100001011100…
…0111001100011
310120010120221000
43002320321203
5101034321440
65023003043
71160151336
oct302707143
9116116830
1051088995
1126924a11
1215139483
13a779c99
146adc61d
154742730
hex30b8e63

51088995 has 64 divisors (see below), whose sum is σ = 97511040. Its totient is φ = 25288704.

The previous prime is 51088991. The next prime is 51088997. The reversal of 51088995 is 59988015.

51088995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51088995 - 22 = 51088991 is a prime.

It is a super-2 number, since 2×510889952 = 5220170820220050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51088995.

It is not an unprimeable number, because it can be changed into a prime (51088991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 259237 + ... + 259433.

It is an arithmetic number, because the mean of its divisors is an integer number (1523610).

Almost surely, 251088995 is an apocalyptic number.

51088995 is a deficient number, since it is larger than the sum of its proper divisors (46422045).

51088995 is a wasteful number, since it uses less digits than its factorization.

51088995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The square root of 51088995 is about 7147.6566089873. The cubic root of 51088995 is about 371.0585585768.

51088995 divided by its sum of digits (45) gives a palindrome (1135311).

The spelling of 51088995 in words is "fifty-one million, eighty-eight thousand, nine hundred ninety-five".

Divisors: 1 3 5 9 15 17 27 45 51 85 113 135 153 197 255 339 459 565 591 765 985 1017 1695 1773 1921 2295 2955 3051 3349 5085 5319 5763 8865 9605 10047 15255 16745 17289 22261 26595 28815 30141 50235 51867 66783 86445 90423 111305 150705 200349 259335 333915 378437 452115 601047 1001745 1135311 1892185 3005235 3405933 5676555 10217799 17029665 51088995