Search a number
-
+
51028944 = 2437913457
BaseRepresentation
bin1100001010101…
…0001111010000
310120000112112220
43002222033100
5101030411234
65021421040
71156511301
oct302521720
9116015486
1051028944
112689388a
121510a780
13a758855
146ac47a8
15472ea49
hex30aa3d0

51028944 has 40 divisors (see below), whose sum is σ = 133503360. Its totient is φ = 16793088.

The previous prime is 51028933. The next prime is 51028961. The reversal of 51028944 is 44982015.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2937 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (3337584).

Almost surely, 251028944 is an apocalyptic number.

It is an amenable number.

51028944 is an abundant number, since it is smaller than the sum of its proper divisors (82474416).

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

51028944 is a wasteful number, since it uses less digits than its factorization.

51028944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13547 (or 13541 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 51028944 is about 7143.4546264395. The cubic root of 51028944 is about 370.9131184247.

The spelling of 51028944 in words is "fifty-one million, twenty-eight thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 79 158 237 316 474 632 948 1264 1896 3792 13457 26914 40371 53828 80742 107656 161484 215312 322968 645936 1063103 2126206 3189309 4252412 6378618 8504824 12757236 17009648 25514472 51028944