Search a number
-
+
51088272 = 2431064339
BaseRepresentation
bin1100001011100…
…0101110010000
310120010112221020
43002320232100
5101034311042
65022555440
71160146254
oct302705620
9116115836
1051088272
1126924414
1215138b80
13a779861
146adc264
1547423ec
hex30b8b90

51088272 has 20 divisors (see below), whose sum is σ = 131978160. Its totient is φ = 17029408.

The previous prime is 51088249. The next prime is 51088291. The reversal of 51088272 is 27288015.

It is a super-2 number, since 2×510882722 = 5220023071891968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532122 + ... + 532217.

It is an arithmetic number, because the mean of its divisors is an integer number (6598908).

Almost surely, 251088272 is an apocalyptic number.

It is an amenable number.

51088272 is an abundant number, since it is smaller than the sum of its proper divisors (80889888).

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

51088272 is a wasteful number, since it uses less digits than its factorization.

51088272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064350 (or 1064344 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 51088272 is about 7147.6060327917. The cubic root of 51088272 is about 371.0568081894.

It can be divided in two parts, 51088 and 272, that added together give a triangular number (51360 = T320).

The spelling of 51088272 in words is "fifty-one million, eighty-eight thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 1064339 2128678 3193017 4257356 6386034 8514712 12772068 17029424 25544136 51088272