Search a number
-
+
51280296 = 23317125687
BaseRepresentation
bin1100001110011…
…1100110101000
310120111022100020
43003213212220
5101111432141
65031040440
71161606144
oct303474650
9116438306
1051280296
1126a45711
1215210120
13a816092
146b4c224
15477e266
hex30e79a8

51280296 has 32 divisors (see below), whose sum is σ = 135743040. Its totient is φ = 16087808.

The previous prime is 51280291. The next prime is 51280319. The reversal of 51280296 is 69208215.

51280296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51280291) 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 7 ways as a sum of consecutive naturals, for example, 62436 + ... + 63251.

It is an arithmetic number, because the mean of its divisors is an integer number (4241970).

Almost surely, 251280296 is an apocalyptic number.

It is an amenable number.

51280296 is an abundant number, since it is smaller than the sum of its proper divisors (84462744).

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

51280296 is a wasteful number, since it uses less digits than its factorization.

51280296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125713 (or 125709 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 51280296 is about 7161.0261834461. The cubic root of 51280296 is about 371.5211204147.

It can be divided in two parts, 512 and 80296, that added together give a palindrome (80808).

The spelling of 51280296 in words is "fifty-one million, two hundred eighty thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 125687 251374 377061 502748 754122 1005496 1508244 2136679 3016488 4273358 6410037 8546716 12820074 17093432 25640148 51280296