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51928992 = 253360103
BaseRepresentation
bin1100011000010…
…1111110100000
310121201021012000
43012011332200
5101243211432
65053004000
71200250323
oct306057640
9117637160
1051928992
1127349025
1215483600
13a9b241b
146c7a7ba
15485b57c
hex3185fa0

51928992 has 48 divisors (see below), whose sum is σ = 151462080. Its totient is φ = 17309376.

The previous prime is 51928973. The next prime is 51928997. The reversal of 51928992 is 29982915.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (51928997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29188 + ... + 30915.

It is an arithmetic number, because the mean of its divisors is an integer number (3155460).

Almost surely, 251928992 is an apocalyptic number.

It is an amenable number.

51928992 is an abundant number, since it is smaller than the sum of its proper divisors (99533088).

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

51928992 is a wasteful number, since it uses less digits than its factorization.

51928992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60122 (or 60108 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 51928992 is about 7206.1773500241. The cubic root of 51928992 is about 373.0811420383.

The spelling of 51928992 in words is "fifty-one million, nine hundred twenty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 60103 120206 180309 240412 360618 480824 540927 721236 961648 1081854 1442472 1622781 1923296 2163708 2884944 3245562 4327416 5769888 6491124 8654832 12982248 17309664 25964496 51928992