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51241432 = 23111135153
BaseRepresentation
bin1100001101111…
…0000111011000
310120102100000211
43003132013120
5101104211212
65030140504
71161354634
oct303360730
9116370024
1051241432
1126a194a0
12151b1734
13a801498
146b3bdc4
1547729a7
hex30de1d8

51241432 has 32 divisors (see below), whose sum is σ = 105760080. Its totient is φ = 23080960.

The previous prime is 51241427. The next prime is 51241433. The reversal of 51241432 is 23414215.

51241432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51241433) 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, 7368 + ... + 12520.

Almost surely, 251241432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51241432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52880040).

51241432 is an abundant number, since it is smaller than the sum of its proper divisors (54518648).

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

51241432 is a wasteful number, since it uses less digits than its factorization.

51241432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283 (or 5279 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 51241432 is about 7158.3120915478. The cubic root of 51241432 is about 371.4272413026.

Adding to 51241432 its reverse (23414215), we get a palindrome (74655647).

It can be divided in two parts, 5124 and 1432, that added together give a palindrome (6556).

The spelling of 51241432 in words is "fifty-one million, two hundred forty-one thousand, four hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 88 113 226 452 904 1243 2486 4972 5153 9944 10306 20612 41224 56683 113366 226732 453464 582289 1164578 2329156 4658312 6405179 12810358 25620716 51241432