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51679376 = 2471572939
BaseRepresentation
bin1100010100100…
…1000010010000
310121020120202222
43011021002100
5101212220001
65043400212
71165160510
oct305110220
9117216688
1051679376
1127198531
1215383068
13a925918
146c13840
15480c61b
hex3149090

51679376 has 40 divisors (see below), whose sum is σ = 115200960. Its totient is φ = 21999744.

The previous prime is 51679333. The next prime is 51679423. The reversal of 51679376 is 67397615.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16115 + ... + 19053.

It is an arithmetic number, because the mean of its divisors is an integer number (2880024).

Almost surely, 251679376 is an apocalyptic number.

51679376 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51679376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57600480).

51679376 is an abundant number, since it is smaller than the sum of its proper divisors (63521584).

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

51679376 is a wasteful number, since it uses less digits than its factorization.

51679376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111 (or 3105 counting only the distinct ones).

The product of its digits is 238140, while the sum is 44.

The square root of 51679376 is about 7188.8369017526. The cubic root of 51679376 is about 372.4823972584.

The spelling of 51679376 in words is "fifty-one million, six hundred seventy-nine thousand, three hundred seventy-six".

Divisors: 1 2 4 7 8 14 16 28 56 112 157 314 628 1099 1256 2198 2512 2939 4396 5878 8792 11756 17584 20573 23512 41146 47024 82292 164584 329168 461423 922846 1845692 3229961 3691384 6459922 7382768 12919844 25839688 51679376